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Troubleshooting

How to Reset Windows Defender Real-Time Protection

Windows Defender real-time protection can sometimes get stuck, fail to turn on, or stop respondin...

Troubleshooting

Fix VS Code Git Authentication Failure with No Prompt

You try to push or pull in VS Code and see an error like "Git authentication failed" but ...

Troubleshooting

Fix Cloudflare Origin Certificate with Let's Encrypt

If your origin server is rejecting the Cloudflare origin certificate—perhaps because of a SAN mis...

Troubleshooting

Python Memory Error When Processing Large Files: Troubleshooting Checklist

You're running a Python script that reads a large file—maybe a CSV with millions of rows, a l...

Troubleshooting

How to Fix Git Detached HEAD State and Undo Changes

You run git status and see something like "HEAD detached at abc123". This ha...

Troubleshooting

How to Fix Git Push Rejected (Non-Fast-Forward) Error

You run git push and get an error like ! [rejected] main -> main (non-fast-...



        
            
                
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                    Support Note
                     Test fixes in a non-critical profile first, keep backups for configuration files, and record exact error messages before changing settings.