Hardware installation: access denied

I am trying to install new drivers for a USB CD-RW drive.

When I'm almost done, having selected to install the newly downloaded drivers, it gives me the following:

"This hardware cannot be installed
...
A problem occured when the unit was being installed.
Access denied."

(Rough translation from Swedish.)

I'm doing this from an admin account, and I've made sure the windows folders are all NOT write protected. Has anyone here come across this before?

(I tried looking at microsoft's own support pages, but as I expected, they were pretty useless...)

 

Did you connect the USB CD-RW drive before installing the software? If so it may be the problem. You should disconnect it and perform a System Restore and select a date before you connected it. Then install the USB CD-RW drive software.

Good luck.

 

Thanks. I'll try that.