I have the same problem but I don't think it comes from the windows update.
I still did not figure out the exact program but it is either:
antivirus, antimalware, update program from asus,...
Wheneve I manually close these and turn of all autoupdates I don't get this game minimizing problem.
Balance is very map dependent but I have the feeling SOV/USF combo is the strongest atm.
SOV with Support weapons, guards and heavy tanks.
USF with Heavy infantry focus followed by Sherman spam or Jacksons depending what the SOV player takes.