Windows 10: Can’t uninstall Microsoft Security Essentials? No problem!
You upgrade to Windows 10. All seems to be going well.
There’s only one problem: Every time you reboot, you get an error message about Microsoft Security Essentials.
“No problem!” you think. I’ll just uninstall it. Nope!
Worse yet, Windows 10 is very confused, since Windows Defender is basically the same program. Defender won’t run, and neither will Security Essentials.
What to do? Read on!