I came across a note (sorry...can't recall where) that said Defender would turn itself off if it encountered another anti-virus program (or maybe remnants of one?). It didn't say anything about turning it back on. That might be a clue. I still have no idea how to "reinstall" Defender.
how do I reinstall windows defender for windows 10
I accidently uninstalled Windows Defender for Windows 10. How do I reinstall it?
[Moved from Windows]
Windows for home | Windows 10 | Security and privacy
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Anonymous
2016-05-06T00:46:46+00:00 -
Anonymous
2016-05-06T01:18:02+00:00 How do you reinstall Defender? 577 error code doesn't seem to be fixable at this time and keeps upgrades for Windows 10 from working. What do I do next??
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Anonymous
2016-05-06T01:29:19+00:00 Thanks - instinctevly that sounds right when I first downloaded the other anti virus program it automatically turned off defender so maybe the remnants are still there as you suggest - I'll hunt around & see how I go or if no luck subscribe & pay for a commercial program
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Anonymous
2016-05-07T01:40:38+00:00 some how MPC cleaner has gotten in my computer and blocks any attempt to delete or reinstall defender. Can you help?