Fix Windows Security Not Opening or Running Slow
If Windows Security (formerly Windows Defender) won't open or takes forever to load, it's usually...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Windows Security Antivirus Not Turning On
You open Windows Security and see that the antivirus is off, with no obvious way to turn it on. T...
Fix Windows Defender Not Opening Error 404
You try to open Windows Defender and get an error 404 – the page or resource can't be found. This...
Fix Windows Search High CPU Usage When Not Indexing
You may notice high CPU usage from a process called SearchIndexer.exe or RuntimeBroker.exe, even ...
Fix Remote Desktop Connection Refused on Windows 10
You try to connect to a Windows 10 PC via Remote Desktop, but you get an error like "Remote Deskt...
Fix Windows Defender Update Error 0x80240034
If you see error 0x80240034 when updating Windows Defender, it usually means the update download ...