Can't access removable media

Microsoft Windows xp home edition
January 22, 2010 at 02:50:59
Specs: Windows XP
A laptop has been brought in to me that cannot access anything on external drives: memorysticks or external hard drives, and the CD/DVD drive, but only in normal mode. They seem to work in safe mode.

The drives/memsticks work ok on other computers. In My Computer any external drive shows a red No Entry symbol over it, with "[driveletter]:\ is not accessible. access is denied".

I found somewhere on the internet about deleting the UpperFilters entry from the registry, and restarted the computer. I could access the memorystick once, then it went back to how it had been previously.

I can't find any software installed that might be blocking anything, and I can't find anything in the bios that might be blocking external storage devices.

The antivirus software is AVG Free.

Any help anyone can give would be greatly appreciated, I'm a bit stumped on this one.


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January 22, 2010 at 05:28:45
I haven't been too happy with AVG free. I suggest you try a different free online scanner in safe mode with networking. Not too sure its a virus problem, but definitely could be and is worth a shot. I'd recommend Kaspersky but their scanner is down and I have a feeling (know) you'll run into problems trying to use their trial installer in safe mode. So try NOD32 . Unfortunately, only works in Internet Explorer.

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January 22, 2010 at 09:41:59
thanks. I'm pretty sure its clear but im trying that just in case. Can anyone think of anything else?

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