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 Fool the BIOS booting any USB stick as a Hard Disk, Partitioning it with the 2nd partition


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post Mar 24 2009, 07:44 PM
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Brief Tutorial

1. The highest bootability (100%) of any USB stick is reached when BIOSes with USB support recognize it as a Hard Disk and then boot it in Hard Disk emulation mode.
2. About the USB booting many BIOSes are not adequately featured and refuse to boot a USB stick unless it is recognized as a Hard Disk.
3. Any previous way (except the rarely possible flipping of the removable bit) is not really able to recognize from the BIOS a USB stick as a Hard Disk.
4. Hard Disks are the only mass storage devices that can be normally partitioned with more than 1 partition.
5. The partitioning with more than 1 partition is able to fool the most BIOSes that any USB stick is a Hard Disk.
6. This is the most effective and simple way to achieve the highest bootability of any USB stick.
7. It might work in 100% of cases.


Preliminary Notes

A brief note about naming: as known "UFD" is the acronym of USB Flash Drive and actually it seems the official name for USB Removable Devices.
http://en.wikipedia.org/wiki/USB_flash_drive#Naming
"Bootability" is a term that expresses the concept of hardware-compatibility matched by your UFD vs. your BIOS, so if in your BIOS setup all settings for USB booting are enabled and it fails to boot your bootable UFD then the related bootability is low.
https://www.codidirect.com/shop/thefactsbeh...bootability.htm

Running some tests in order to increase the bootability of my USB Flash Drive I've experienced two simple ways with effective results.
The following two ways are related to existing USB support in the BIOS, that's just as the most BIOSes have.
Here is described what I did in order to boot any UFD from (reasonably) the most machines out there.


1. The Simplest Way, that I named Format-it-&-Forget-it.

As we all know, even if the most BIOSes are perfectly able to boot a USB Hard Disk, often they completely refuse to boot a USB Flash Drive.
Some BIOSes seem to "assume" that a USB Flash Drive can not be partitioned, and on the other hands the most BIOSes seem to "acknowledge" that a USB Hard Disk can be.
So, if you just create 2 partitions on your UFD then your BIOS will believe that your UFD is a USB Hard Disk just because it is partitioned, and then it will boot!

No special tweaking or physical hacking of your UFD is needed and no special tool or utility is used in order to make your UFD bootable: you only need for a filter driver, the XP's Disk Management console and a boot loader.

In order to increase the bootability of your UFD it is enough to create just 2 partitions on it.

Really it would be impossible due to the fact that Windows allows just one single partition on your UFD, but if you install a Filter Driver under your Windows PC then your UFD will become perfectly partitionable because Windows (thanks to the filter driver just installed) will recognize it like a Hard Disk (Basic Disk) and you can easily partition it using the XP's Disk Management console (Start > Run > diskmgmt.msc).
Please note that XP's Disk Management console still seems the best choice in order to contribute to a high bootability, creating a MBR of your device (with the Partition Table inside) widely and reliably compatible.
So, if you are planning to perform this tutorial, please do NOT use any other partitioning software.


HowTo:

1. Download "soviet_direct_hooking_src.zip" from here http://www.codeproject.com/KB/system/sovie...ct_hooking.aspx
then unzip it and rename "dummydisk.sys" as "dummy.sys".
Copy "dummy.sys" in your "system32\drivers" folder and add "dummy.reg" to the registry (with a double-click).

"dummy.reg"
CODE
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\dummy]
"Type"=dword:00000001
"Start"=dword:00000000
"ErrorControl"=dword:00000001
"ImagePath"=hex(2):73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,44,00,\
  52,00,49,00,56,00,45,00,52,00,53,00,5c,00,64,00,75,00,6d,00,6d,00,79,00,2e,\
  00,73,00,79,00,73,00,00,00
"DisplayName"="USB Mass Storage Filter Driver"
"Group"="System Reserved"
"Tag"=dword:00000001

As alternative way you can install a different Filter Driver, that's Hitachi Microdrive, as following:
download "xpfildrvr1224_320.zip" from here
http://home.graffiti.net/jaclaz:graffiti.n...rvr1224_320.zip
or from here
http://files.filefront.com/xpfildrvr1224+3...;/fileinfo.html
then unzip it and rename the resulting folder as "hm".
Edit "cfadisk.inf" existing in that folder, deleting the whole content of [cfadisk_device] section and replacing it with the following single line: that is a great way in order to install the microdrive-filter-driver for any UFD avoiding to specify the HardwareID for every ones (thanks to cdob)

CODE
[cfadisk_device]
%Microdrive_devdesc% = cfadisk_install,USBSTOR\GenDisk

Then place "hm" folder in "system32\drivers".
With your UFD attached to your PC, open Device Manager (Start > Run > devmgmt.msc) and select your UFD under "Disk drives", then select its "Driver" flag and push the "Update Driver..." button > "Install from a list or specific location (Advanced)" > "Don't search. I will choose the driver to install." > "Have Disk..." > "Browse..." > Pointing and opening the "hm" folder you've placed in "system32\drivers" select "cfadisk.inf" > "OK" > Then select "Hitachi Microdrive" in "Model" pane > Next > The "Update Driver (Compatibility) Warning" window will appear > Click YES > Finish.

2. Restart Windows: now your UFD would appear as a Basic Disk (please note that some programs could interfere with the Filter Driver behaviour http://www.boot-land.net/forums/index.php?...ost&p=63469 ).
Now launch Disk Management (Start > Run > diskmgmt.msc) and delete existing partition, then create the 1st partition in FAT32 or NTFS file-system letting about 250 MB of free space (unallocated) at the end of your UFD; mark the just created partition as active.

3. Create the 2nd partition in any file-system using the whole unallocated space just existing at the end of your UFD, and then forget it!



4. Install "grub4dos" in the MBR of your UFD and copy "grldr" and "menu.lst" in the root of the active partition.

Please, note that there is a case where you can even avoid the use of an external boot loader: as a matter of fact following "Format-it-&-Forget-it" way you can load "Full XP" on the active partition of your UFD just through its own "ntldr", preserving the high bootability already reached.

CODE
A. Download latest release of "grub4dos" from here   http://nufans.net/grub4dos/
B. Download latest release of "grubinst-bin-w32" from here   http://nufans.net/grub4dos/grubutil/
C. Unzip both folders on your desktop and merge all their contained files in a single folder named as you want ("COPYING" file will be overwrtitten).
D. Copy that folder in your system drive root, assuming (C:\).
E. Attach your UFD to your PC, launch Disk Management (Start > Run > diskmgmt.msc) and keep note of which drive number Windows has assigned to your UFD, then close Disk Management.
F. Open the above created folder in your (C:\) drive and run "grubinst_gui.exe", then select "Device Name" > Disk.
G. Now choose your UFD - something like "(hd4) [7899M]" - in "Disk" flag (be VERY sure that it is just your UFD and not your HD) and push the "Install" button, then push the Enter key on your keyboard after reading in the related Command Prompt screen that "grub4dos" has been successfully installed.

5. Edit your "menu.lst" file in an appropriate way, create a folder named "boot" in the root of the active partition of your UFD and place into it (or even in the root of the active partition itself) all you want to load and to select in the "grub4dos" Menu screen at startup.

"menu.lst" example
CODE
color black/cyan yellow/cyan
timeout 30
default 0

title Active@ Partition Recovery
map --mem /boot/apr.ima (fd0)
map --hook
chainloader (fd0)+1
rootnoverify (fd0)

title Linux Parted Magic
kernel /boot/pmagic/bzImage noapic root=/dev/ram0 init=/linuxrc keymap=us
liveusb vga=791 sleep=0 quiet xvesa tmpfs_size=350M ramdisk_size=25000 directory=/boot
initrd /boot/pmagic/initrd

title Norton Partition Magic
map --mem /boot/npm.ima (fd0)
map --hook
chainloader (fd0)+1
rootnoverify (fd0)

title Paragon Total Defrag
find --set-root /boot/ptd.iso
map --mem /boot/ptd.iso (hd32)
map --hook
chainloader (hd32)
boot

title RecoverSoft Media Tools Pro
map --mem /boot/mtl.img (fd0)
map --hook
chainloader (fd0)+1
rootnoverify (fd0)

title Symantec Ghost
map --mem /boot/gho.ima (fd0)
map --hook
chainloader (fd0)+1
rootnoverify (fd0)

title TeraByte BootIt NG
map (hd0,0)/boot/bng.iso (hd32)
map --hook
chainloader (hd32)

title VistaPE
map (hd0,0)/boot/vpe.iso (hd32)
map --hook
chainloader (hd32)

title Windows XP Professional
find --set-root /ntldr
chainloader (hd0,0)/ntldr

6. Done!
You just have highly increased the bootability of your UFD.

Since the most BIOSes regularly support USB-HDD booting and now your UFD is seen by the BIOS as an HDD (just because you have partitioned it), then your UFD will boot not only from your PC, but also (reasonably) from the most machines out there!


2. The Democratic Way: that I named Format-it-&-Boot-it.

Since so many reports refer that the 1st partition in FAT file-system on your UFD would ensure the highest level of hardware compatibility at booting, I thought: why not just provide one?
So, in order to even further increase the bootability of your UFD you have to perform the above way with some following differences.


HowTo:

1. After installing the filter driver as described above then create the 1st partition on your UFD up to 2047 MB in size and format it in FAT file-system.

2. Then create the 2nd partition of an appropriate size in FAT32 or NTFS file-system and mark it as active.
Really you can create up to 4 primary partitions on your UFD, depending on your needs.



3. Now install "grub4dos" in the MBR of your UFD as described above and copy "grldr" and "menu.lst" in the root of the 1st partition.

4. Edit your "menu.lst" file in an appropriate way, create a folder named "boot" in the root of the 1st partition (or in any other not-encrypted partition if you have created ones) of your UFD and place into it all you want to load and to select through "grub4dos" Menu screen at startup.

5. Done!

Now, since so many reports refer that the 1st partition in FAT file-system assures the highest hardware-compatibility (please, read: bootability) then you have just further increased the bootability of your UFD and it will boot (reasonably) even from more machines than performing the previous simplest way!


Please, note that this way you can run Multiple XP, as well as "Full XP in Single-Booting", "Full XP in Dual-Booting", "Full XP in Multi-Booting", indifferently from the 1st, 2nd, 3rd and/or 4th Active Partition of your UFD selecting through "grub4dos" Menu screen at startup which you want to load (included all supported applications as ISO, IMA, IMG, etc, if existing); just as described in Multiple XP on Multi-Partitioned USB Flash Drive here http://www.boot-land.net/forums/index.php?...ost&p=62682


To add/replace in "menu.lst" example for Full XP in Dual-Booting (very simplified, thanks to jaclaz and tinybit)
CODE
title Windows XP Professional (from the 2nd partition)
unhide (hd0,1)
hide (hd0,2)
root (hd0,1)
chainloader /ntldr

title Windows XP Professional (from the 3rd partition)
unhide (hd0,2)
hide (hd0,1)
root (hd0,2)
chainloader /ntldr



Good luck!





The Known Background

The most relevant argument explaining why so many issues occur at the booting with USB Flash Drives seems essentially imputable to the lack of an industry-standard USB-oriented common protocol of BIOS manufacturers.
Then, accepting that a full - that's a really universal - hardware-compatibility with all existing BIOSes (modern and of the past) appears as reasonably unreachable, we must seek-out for the most compatibility possible.
If you take a look at the jaclaz's FAQ #10 you can discover that there are many reasons preventing the success at USB-booting.
http://home.graffiti.net/jaclaz:graffiti.n...SB/USBfaqs.html
Furthermore if you read here
http://www.boot-land.net/forums/index.php?showtopic=6546#
you can see again that a real and total compatibility with all BIOSes - even if theoretically declarable - is practically unattainable, at least following an acceptable real and known way.
So we must settle for the widest-possible applicable compatibility.

Reducing too many possible variables in a reasonable number-and/or-circumstances it seems that there are at least two "easily" practicable conditions that can ensure to your USB Flash Drive a statistically high-grade of compatibility at USB-booting for a high percentage of machines (that's of BIOSes), more or less modern:
1. FAT(16) file-system (as the 1st partition);
2. Fixed Disk (as USB Flash Drive behaving like USB-HDD).

By the user-side all improving attempts can be made only on what we can change, but obviously (except some BIOS-related projects like "coreboot.org") on existing BIOSes we can't.

In other words: if it's true, and it seems so true, that when a booting fails any BIOS is always "guilty" while any UFD is always "innocent", then - paradoxically - we are forced to act on the innocent because we can not act on the guilty!

This fact implies that you can (almost always) implement just workarounds, not a genuine solution.

So the research of a better hardware compatibility (that's a successfully booting-couple UFD/BIOS) becomes almost exclusively USB Flash Drive related (except the few settings allowed within every BIOS setup) and it represents de facto the critical area (and then the bottle-neck, if not the nightmare) where the most procedures and the most efforts are moving in order to maximize and to optimize the results (that's to reach a wide and reliable booting).

One of the most effective, if not absolutely the most effective practice in order to walk-up the best possible booting from USB Flash Drives is related to the flipping of the "removable bit" in your physical drive (really in the dedicated controller within your drive) that will be capable to transform your USB Flash Drive just in a physical Basic Disk (that's exactly as a Hard Disk).
Then, it is a solution.

Unfortunely the results of that practice are "randomized" and limited-in-number due to a missing universal-tool capable to do that job on every UFD (although some different utilities are specifically dedicated to some different UFD controllers).
As alternative ways there are some other tools-&-utilities developed to format and to make bootable your UFD, and some various techniques more or less complex thought-up in order to reach the wished success at booting, but - despite this - a really wide-&-standardized compatibility at USB-booting seems still far to be reached.

As already said all reports seem to refer that the FAT(16) file-system assures a high grade of hardware-compatibility (please, read: bootability) with the most BIOSes.
Unfortunely the FAT(16) file-system is not efficient, is limited in partition-size, in cluster-size, in waste of disk space and furthermore under Windows your USB Flash Drive can have just one single partition.
http://www.microsoft.com/technet/prodtechn...v.mspx?mfr=true

Then the scenario really does not appear as the most desiderable.

However, there are two Filter Drivers (Anton Bassov's "dummydisk.sys" and Hitachi Microdrive) out there that are able (by software-side) to recognize under Windows your USB Flash Drive just like a Basic Disk and then to make it perfectly partitionable.
Furthermore there is a great universal Boot Loader named "grub4dos" that has been decisive in order to obtain the described results.

So my idea was simple: since the most BIOSes - oldish ones, and newish ones too - strongly prefer at USB-booting the (1st partition in) FAT file-system, why not just provide one?

About both my idea (that I already applied it in the past with a logical partition, but resulting much less versatile) and the "grub4dos + dummydisk" wonderful combine, my recent tests have been very exciting and very effective for me; so the above procedure describes how I did and what were the additional advantages that I found.

Of course I'm very interested in unknown and/or alternative ways equally and/or so widely simple-&-effective, thus if somebody knows or has been experienced similar high-bootability results following different and/or better ways please kindly report here in order to possibly redefine the State-of-the-Art about the USB Flash Drive bootability.
Thank you!



Format-it-&-Forget-it Notes.

Running some tests I've discovered that the "point of view" of the BIOS does not seem the same point of view of Windows and from the point of view of the BIOS it seems no matter if the partitions on your UFD are accessible or not under Windows, because the BIOS however will recognize that your UFD is partitioned and - just for this - it will believe that your UFD is a USB Hard Disk!

So, if your BIOS supports USB-HDD feature - like the most BIOSes just do - it will be ENOUGH that your UFD is PARTITIONED - with (at least) 2 partitions - in order to induce the BIOS to BELIEVE that your UFD is just a USB Hard Disk and then it will boot (reasonably) from the most machines out there!

This way I was able to boot "Full XP" without ANY boot loader except its own (that's just "ntldr") from the active partition of my UFD on a machine that refuses to boot ANYTHING that is not as a Fixed Disk simply partitioning my UFD!

So - about the USB booting - the simple partitioning of your UFD seems to succeed EXACTLY as the flipping of removable-bit does and then the bootability of your UFD will result highly increased!

Then it could be a universal solution, with no price to pay (because few hundreds of megabytes partitioned at the end of your UFD and not accessible from every machine are NOT really a price), and it would NOT be a workaround (because the partitioning on your UFD is REAL and your BIOS will read it very well)!

A clarification is needed.
Under your Windows PC you may partition your UFD as following: the 1st partition of almost ALL the size of your UFD and the 2nd SMALL partition (in any file-system) at the end of the disk (and that you will not use): this way your UFD will remain with the almost all its size available from every machine WITHOUT any filter driver installed and it does not lose any functionality; furthermore its bootability will be effectively increased because this way it will be able to boot (reasonably) from the most machines.

So, this way appears as an EFFECTIVE and contemporarely the SIMPLEST way in order to highly INCREASE your UFD bootability.


Format-it-&-Forget-it (Full XP in Single-Booting, running without any boot loader except its own "ntldr")




Format-it-&-Boot-it Notes.

I am literally enthusiastic about the synergy of "grub4dos + dummydisk" that I've experienced: "grub4dos" is GREAT and "dummydisk" is GREAT too and they together are wondeful for me: so absolutely synergistic and so absolutely effective!

Particularly - under "Full XP" running from your UFD - "dummydisk.sys" has been able to filter ON-THE-FLY the install of all NEW (so never previously recognized) and pre-partitioned USB Flash Drives without the need to PRE-RECOGNIZE them: so it has appeared as the best candidate for this job and most of all for the creation of partition's image-backups as well as UNIVERSALLY restorable without modifications (except two lines in your "boot.ini" AFTER the restoring on a different numbered partition) on every new UFD, and on every partition of your UFD you want to boot from (1st, 2nd, 3rd and/or 4th).
This fact means that you will NOT need to re-create (or to modify) your partition's image-backups (or your XP installation) for every new UFD you want to use: the same backup (even of an encrypted partition) will be working for all your USB Flash Drives: also for those that you have not yet purchased!
Furthermore, "dummydisk" Filter Driver can be integrate in your customized (with nLite, as an example, just as I did) XP Installation CD-ROM with the same above results, that's with a full POST-COMPATIBILITY with every new UFD, and then ensuring a high-grade of versatility.

"You cannot have your cake and eat it",
then you have to pay the price of a compromise: however in my opinion it will be a (relatively) small price to pay considering the reached advantages.

The price to pay:
1. Only ONE partition will be accessible under Windows when you will attach NOT FOR BOOTING (as if you boot with your UFD all its partitions will be regularly allowed) your UFD under those machines where is NOT already installed a Filter Driver.

The benefits:
1. You can boot your UFD from (reasonably) the most machines with a high-grade of success: as already said now my UFD is able to boot even from a machine that refuses to boot ANYTHING that is not as a Fixed Disk!
2. Simple "newbie-proof" procedure.
3. No special tweaking or physical hacking of your UFD will be needed and no special tool or utility will be used in order to make your UFD bootable, neither "HP USB Disk Storage Format Tool" nor "PeToUSB" utility, nor "Lexar BootIt", nor other ones: this procedure implies both the widest (reasonable) compatibility and the simplest usage.
4. You can easily "translate" your current "Windows XP Professional SP3" running from your current PC into "Full XP from your UFD" with the minimal tweaking possible.
5. You can restore either your "Full XP" installation or your UFD partition's image-backups to every new UFD without ANY modification (except two lines in your "boot.ini" AFTER the restoring on a different numbered partition) and WITHOUT both to pre-install your new UFD or to create a new partition's image-backup (or to modify your XP installation).
6. You can encrypt (with TrueCrypt) your UFD System Drive with no issue.
7. You can restore a RAW image-backup of your UFD encrypted System Partition to every new UFD without any modification (except a quick and easy TrueCrypt "key data/volume header" restoring from its Menu screen).


Format-it-&-Boot-it (Full XP in Dual Booting, running from the 3rd Active Partition)



--------------------
Fool the BIOS booting any USB stick as a Hard Disk
Partitioning it with the 2nd partition

Full XP on Multi-Partitioned USB Flash Drive

Full XP on USB Removable Logical Drive
4 user(s) said "Thank you!" to online for this fantastic post:
amalux, ktp, Lancelot, Nuno Brito
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post Mar 24 2009, 08:07 PM
Post #2
Nuno Brito
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Group: .script developer

  Joined: 13-July 06 From: Coimbra

Posts: 7,452
Thank(s): 289


Portugal


Very good document, the way you write is very simple to follow and read.

smile.gif


--------------------
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post Mar 25 2009, 03:15 PM
Post #3
online
Silver Member   ****
Group: Advanced user

  Joined: 28-July 07
Posts: 717
Thank(s): 26


Thank you, I'm pleased with your words!

Waiting for desirable successful reports... smile.gif


--------------------
Fool the BIOS booting any USB stick as a Hard Disk
Partitioning it with the 2nd partition

Full XP on Multi-Partitioned USB Flash Drive

Full XP on USB Removable Logical Drive
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post Mar 26 2009, 09:02 PM
Post #4
harris
Newbie   *
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  Joined: 11-January 09
Posts: 26
Thank(s): 1


Netherlands


Hello online,

I�m trying your method to make a USB flash drive bootable.
But the filter driver is not working for me.
Did the things you write,bud can not create a new partition under Disk Management (Start > Run > diskmgmt.msc)Disk
management give me not the option to delete the partition.And
make new partitions.
My system is Windows XP with SP3.Is there an other way to
make the filter driver working?

Thanks in advance.

Greets Henk
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post Mar 27 2009, 06:02 AM
Post #5
online
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  Joined: 28-July 07
Posts: 717
Thank(s): 26


Do you mean that after filter driver installation you do not see your UFD as a Basic Disk?
Have you renamed and copied "dummydisk.sys" as "dummy.sys" in your Windows PC in "system32\drivers folder?
Are you sure that you've created and added "dummy.reg" in your registry and then restarted Windows?
However another way exists, but in this moment I have not the time to explain it.
Please, wait for tonight... smile.gif


--------------------
Fool the BIOS booting any USB stick as a Hard Disk
Partitioning it with the 2nd partition

Full XP on Multi-Partitioned USB Flash Drive

Full XP on USB Removable Logical Drive
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post Mar 27 2009, 09:22 AM
Post #6
harris
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  Joined: 11-January 09
Posts: 26
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Netherlands


Yes,i did the things exactly as in your tutorial.
Renamed "dummydisk.sys" as "dummy.sys".placed it in Window\
system32\drivers folder.
And with notepad++ i copied the code,and named it "dummy.reg"
placed it on my desktop and double-clickt it.A confimation
was asked and confirmed it.I looked in my registerie and the
dummy file is there.So far so good,bud after restart it stil
a removable disk dubbio.gif

Henk
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post Mar 27 2009, 09:35 AM
Post #7
jaclaz
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Group: Advanced user

  Joined: 14-July 06
Posts: 5,492
Thank(s): 376


Italy


@harris

Have you by any chance any virtual disk drivers (apps like Daemon's Tools or similar) or Acronis products installed on that machine? unsure.gif

jaclaz


--------------------

Light Blue Ribbon Campaign for Freedom of Skin
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post Mar 27 2009, 10:11 AM
Post #8
harris
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  Joined: 11-January 09
Posts: 26
Thank(s): 1


Netherlands


Hoi Jaclaz,

yes indeed i have,for example Ultra-Iso en deamontools.
Are this tools a problem for the filter driver?
If so i delete them.
Thanks for your quick reply !

Henk
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post Mar 27 2009, 12:04 PM
Post #9
Sonny
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Posts: 74
Thank(s): 13


United States


An easy way to format/partition the USB, instead of the filter drivers,
is to use Puppy Linux (or gParted Linux)
gParted works to create and format multiple partitions on usb drives.
I then used it (Puppy) to copy my files aswell.

Sonny
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post Mar 27 2009, 12:15 PM
Post #10
harris
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  Joined: 11-January 09
Posts: 26
Thank(s): 1


Netherlands


Oke,thank you for your solution.But i find out that it's not
the filter driver that makes the problem,but i think some
kind of software on my computer.I will explain,did the same thing on a older computer,and on that computer it's working.
So i have to figure out what the"conflict"is.Jaclaz point me to the right direction,so hope i will find it merc.gif

Henk
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