Link to home
Start Free TrialLog in
Avatar of Joe Grosskopf
Joe Grosskopf

asked on

Windows 8.1 USB fail

I upgraded my Lenovo laptop to windows 8.1 last evening. All my usb devices stopped working. I noticed the chipset had the yellow triangle on it and found out the driver was not digitally signed so Win 8.1 blocked it. I managed to disable the feature that checks for driver signing and now the chipset is good, however my mouse, webcam are both dead with the yellow triangle and if I try to reinstall or update, I just get "invalid data". Any ideas?
Avatar of aadih
aadih
Flag of United States of America image

First restore your computer to before you disabled the "digital signature" feature.

Then go to your computer manufacturer's website to download the appropriate driver. Or use Microsoft Windows Update feature to update the needed drivers.
you will need to download the updated drivers for the chipset and possibly for the devices plugged in to it.  Check the Lenovo website for your model specific drivers.  If none is available there, you may have to find the chipset manufacturers updated drivers (e.g. intel / SIS, etc. )

What model laptop are you using?
Avatar of Joe Grosskopf
Joe Grosskopf

ASKER

Thanks everyone but the user left to go back to Illinois (we are in MD) before I got a chance to test any of these.
ASKER CERTIFIED SOLUTION
Avatar of Joe Grosskopf
Joe Grosskopf

Link to home
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Start Free Trial
The solution worked
Great. You fixed it. :-)