4 gb pen drive

Closed
dattatry - Jun 9, 2010 at 10:15 PM
krishnashrestha7
Posts
10
Registration date
Wednesday June 9, 2010
Status
Member
Last seen
June 12, 2010
- Jun 10, 2010 at 02:36 AM
Hello,




my pendrive not detected when attached to computer at any operating system

2 replies

Blocked Profile
Jun 10, 2010 at 02:34 AM
Dear Sir,

Please consider connecting it to another USB port to see whether the problem gets solved.

Thanks in advance.
0
krishnashrestha7
Posts
10
Registration date
Wednesday June 9, 2010
Status
Member
Last seen
June 12, 2010
6
Jun 10, 2010 at 02:36 AM
Method 1:

This could be due to no free drive letter has been assigned to your pen drive, you can refer to this post to know what to do in that case.

Still, if you don't see your pen drive under device manager or if you see some question mark suddenly on your drive in device manager then there could be problem with your registry also,

Read method 2 given below

Method 2:

If none of your USB devices detect ,this could be due to wrong registry entries. i.e you need to delete UpperFilters and the LowerFilters registry values.

Follow the procedure listed below to correct your registry
1. Open Start >> Run, and type "regedit" (without double quotes), and click OK.

2. Locate UpperFilters registry value. it resides in the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E980-E325-11CE-BFC1-08002BE10318}

3. Click on Edit menu, and select Delete and click OK.
Note: If you receive an error when you try to delete the registry subkey, you may not have correct permissions to edit the subkey.

4. Locate LowerFilters registry value. It resides in the following registry subkey:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E967-E325-11CE-BFC1-08002BE10318}

5. Click on Edit menu, and select Delete and click OK.
6. Exit Registry Editor and restart your system
0