Hello netadict and welcome to Seven Forums.
I'd uninstall MSE and then run a system file checker scan from an elevated command prompt (option two) to make sure I didn't have any damaged or corrupt system files. If the scan show any problems, run the scan 3 times rebooting in between each scan. Then I'd reinstall MSE and see what happens. Perhaps someone else will jump in with a better suggestion. SFC /SCANNOW Command - System File Checker