Hello,
I am using an external HDD for backups on my WIN 2008 server. Recently I applied monthly updates and this caused my ext hdd to stop working. It doesn't show up in My Computer and in Device Manager is showing with a yellow triangle and this the error message that I have :
Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)Click 'Check for solutions' to send data about this device to Microsoft and to see if there is a solution available.
And I got this error also at start up :
Log Name: System
Source: Service Control Manager
Date: 2/2/2010 9:44:54 AM
Event ID: 7026
Task Category: None
Level: Error
Keywords: Classic
User: N/A
Computer: server.domain
Description:
The following boot-start or system-start driver(s) failed to load:
AACmgt
I tried also other usb drives and all of them are giving the same problem. Any idea on how to fix this ?
This worked for me :
Do a backup of your registry first, then :
I went to regedit and the HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E967-E325-11CE-BFC1-08002BE10318} which is the class for Disk drives . I edited the UpperFilters where I had AACmgt, PartMgr and snapman and I took of AACmgt. I rebooted the server and the all external drives and any other usb drives are working now.
Also try to :
1. Open an elevated command prompt. To do this, click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as administrator.
If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
2. At the command prompt, type the following command, and then press ENTER:
sfc /scannow
Let me know if this helped you ,
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Post #219
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Posted - 2010-02-03 18:33:34
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