Checklists for software errors, setup, and tool workflows.

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Latest checklists

If your Windows 11 update is stuck at 0% and not progressing, the SoftwareDistribution

Fix Git Push Rejected Non Fast Forward Remote Error
You run git push and get: ! [rejected] main -> main (non-fast-forward) erro...

Fix Python Permission Denied When Installing Packages on Mac
If you see a 'permission denied' error when running pip install somepackage ...

Fix VSCode Git Authentication Failed: Permission Denied
If you see 'Git authentication failed' or 'permission denied' when pushing or pul...

How to Repair Windows Security App Issues
If the Windows Security app won't open, shows a blank screen, or gives errors like "This ...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer
You run git clone https://example.com/repo.git and get:
fatal: unable to acc...