Two things are clear. AMD's claim that its processors should run better with Windows 8 seems to be unsubstantiated, at least the benchmarks do not confirm this. Secondly, just like the gaming performance, there is no noteworthy difference between CPU performance in Windows 8 compared to Windows 7.
Business software left the office and moved into the home long ago. If you've ever lost the password to Word, ZIP or PDF file in misguided attempt to protect data from prying eyes, this guide to Decrypting Document and File Passwords is a life saver. PCSTATS Tips