We recently experienced an installation of Windows 10 with system files that were totally corrupt. After attempting typical repair options, we used a Windows 10 ISO to perform an in-place upgrade, reinstalling Windows 10 while preserving even the software you have installed.
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