USB ports won't recognize new hardware

Windows 7 Home Premium

My USB (front and back) ports ceased to recognize new devices, including readers of the pen, much older work OK. Whenever I plug them in, it tries to load a driver, then reports that no driver can be found. This isn't a hardware problem, as all devices work fine under Linux (Ubuntu 10.4) on the same computer. Deviice managed shows also some "unknown devicesE that is"failed to start"or the lack of pilots.

Similar problems were reported in other threads and I have tried to uninstall all devices of the USC (only prevented my mouse to work!) and looking for the top and bottom of the filters (absent). Any advice?

Hi Chris - and anyone else who is still looking for a solution to this common problem.

I found the solution for my system - it was in one of the many similar threads. I moved the C:\windows\system32\DriverStore\infcach.1 file to the desktop. (It would be possible to remove it, but even if I took possession of him and gave myself the full control, I was unable to do so).

Restart, caused a new file to create, much larger than the original. (There was also a file called OldCache.000 which I vainly tried to rename). I then opened the applet devices and printers in Control Panel and was able to install both my printer/scanner (it took two goes, one for each function) and my USB PCI card. If all goes well...

I guess there are several causes for this problem, and all the proposed solutions work for someone.

Thanks for your help - and good luck to everyone is still struggling with the problem.

David

Tags: Windows

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