Checklists for software errors, setup, and tool workflows.

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Fix Microsoft Store Access Denied Error by Clearing Cache

You're trying to open the Microsoft Store, but instead of apps you see an 'Access Denied' message...

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 Chrome Profile Failed to Start in Safe Mode

If you see 'Chrome profile failed to start' when launching in safe mode, the issue is usually a c...

Fix Windows Search Indexing Stuck at 99%

You open Indexing Options, see "Indexing complete" at 99%, and it never finishes. This is a known...

Fix Git Push Rejected: Non-Fast-Forward vs Fast-Forward

When you run git push and see an error like ! [rejected] main -> main (non-fas...

Fix Windows Activation Error 0x8007007b on Ubuntu
If you see Windows activation error 0x8007007b while using Ubuntu (for example, in a dual-boot se...