When the Rollback Driver button isn't available (greyed out) it is an indication that a previous driver version has not been installed for that device.
Depending on the device it is best to check the device manufacturer's website or ride with the Windows recommendation.
Thanks for the reply old rocker. The driver I want to rollback to is a the device manufacturer's and is close to identical to the one running installed by Windows. I had to do a restore a few weeks back due to uninstall of the driver | reboot to re-install it. And driver did not re-install due to an error. So want to test a reserve version incase happens again.
So if Windows will not allow another driver because
1) Rollback is not an option
2) Updating is not an option as Windows determines "best" version already installed
Is there another way? Even if driver is from manufacturer and "signed" same way ("WDKTestCert?")
Edited by intruded_a_lot, 11 September 2014 - 06:04 PM.