My laptop restarted continuously after installing Avast free antivirus, displaying Blue Screen, telling me to search for driver corrupted expool. I restarted, but it kept rebooting. I finally clicked restore to earlier time. Later, all web browsers were gone, Microsoft Office was gone, and my Windows 8.1 bcame 8.0. (no start button)

What can I do to get my Microsoft Office and Windows 8.1 back?

This post has been edited by stickmanchong17: Nov 27 2015, 11:52 PM