Checklists for software errors, setup, and tool workflows.

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Fix Windows Security 404 Error & Missing Files

If you see a 404 error in Windows Security or get messages about missing files, the Security Cent...

Fix Visual Studio Installer Stuck on Microsoft Visual C++ Redistributable

You start installing Visual Studio, and it gets stuck at 'Installing Microsoft Visual C++ Redistr...

Fix Windows Search High CPU Usage: Disable Indexing

If your system feels sluggish and Task Manager shows SearchIndexer.exe or Windows Search using 50...

Fix Windows Update Stuck Checking with Permission Error

If Windows Update hangs on "Checking for updates" and you see a "Permission denied" error in the ...

Fix PostgreSQL Password Authentication Failed on Localhost

You try to connect to PostgreSQL on localhost with a password, but get FATAL: password auth...

How to Reinstall the Windows Security App (Microsoft Defender)
If the Windows Security app (Microsoft Defender) is missing, won’t open, or shows errors, reinsta...