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Windows Forum / Windows XP / Performance and Maintainance / March 2008

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Disk Drives disappeared after Auto Update

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Jean L. - 28 Mar 2008 17:51 GMT
After one of the last few updates two disk drives disappeared (G and H). This
has happened before and I have been able to get them back by doing a System
Restore. I tried it again this time (System Restore can only go back to Dec
29, 2007; nothing available before this date) but still G: and H: have not
re-appeared. I tried Microsoft Knowledge Base Article ID 307844 "How to
change drive letter assignments in Windows  XP" but got to #4 on How to
assigne drive letter and "Change Drive Letter and Paths" does not appear (or
appears greyed out). I use one of these drives to upload photos off Compact
Flash card. Appreciate any help on resolving this. Please keep instructions
basic; we're not IT people. Thanks.
Leonard Grey - 28 Mar 2008 18:17 GMT
What hardware devices use these drive letters?

---
Leonard Grey
Errare humanum est

> After one of the last few updates two disk drives disappeared (G and H). This
> has happened before and I have been able to get them back by doing a System
[quoted text clipped - 6 lines]
> Flash card. Appreciate any help on resolving this. Please keep instructions
> basic; we're not IT people. Thanks.
Jean L. - 28 Mar 2008 18:30 GMT
One is Compact Flash Reader

> What hardware devices use these drive letters?
>
[quoted text clipped - 12 lines]
> > Flash card. Appreciate any help on resolving this. Please keep instructions
> > basic; we're not IT people. Thanks.
Leonard Grey - 28 Mar 2008 18:44 GMT
Windows XP dynamically assigns the next available drive letter to
removable devices. You cannot 'reserve' a drive letter for your device
and once you remove the device its current drive letter assignment is
abandoned. There are some workarounds, however, if you're technically
inclined.

"The Care and Feeding of USB Storage Devices in CP"
http://aumha.net/viewtopic.php?t=28888&start=0&postdays=0&postorder=asc&highlight=

---
Leonard Grey
Errare humanum est

> One is Compact Flash Reader
>
[quoted text clipped - 14 lines]
>>> Flash card. Appreciate any help on resolving this. Please keep instructions
>>> basic; we're not IT people. Thanks.
Jean L. - 28 Mar 2008 21:31 GMT
Thanks, I'll check on Bill Caster's posting.

I understand that drive letters cannot be "reserved". What I don't
understand is that the drives just disappear. Using Disk Management shows
drive C: and 2 drives with no names. Right clicking on the nameless drives
does not give the option to Change Drive Letter or Path. The one nameless
drive (after right clicking) shows only "Help" and the second one "Help" and
"Delete Partition". All other options as greyed out.

> Windows XP dynamically assigns the next available drive letter to
> removable devices. You cannot 'reserve' a drive letter for your device
[quoted text clipped - 27 lines]
> >>> Flash card. Appreciate any help on resolving this. Please keep instructions
> >>> basic; we're not IT people. Thanks.
Leonard Grey - 28 Mar 2008 21:51 GMT
Bill's posting will also explain about 'phantom drives' and give you a
link to a handy (and free) utility that will drive a stake through the
phantom's heart.

---
Leonard Grey
Errare humanum est

> Thanks, I'll check on Bill Caster's posting.
>
[quoted text clipped - 36 lines]
>>>>> Flash card. Appreciate any help on resolving this. Please keep instructions
>>>>> basic; we're not IT people. Thanks.
smlunatick - 28 Mar 2008 20:06 GMT
> One is Compact Flash Reader
>
[quoted text clipped - 16 lines]
>
> - Show quoted text -

This "compact flash" drive is a USB device and you might have to
remove thos device from Device Manager and then re-connect it so that
the XP should re-detect it.

As for assigning perminate drive letters, consider USBDLM
http://www.uwe-sieber.de/usbdlm_e.html
 
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