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Latest Troubleshooting Guides

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Troubleshooting

Fix Windows Defender Real-Time Protection Grayed Out

You open Windows Security, go to Virus & threat protection, and see Real-time protection is turne...

Troubleshooting

Fix Ubuntu APT Update GPG Error: No Public Key

When running sudo apt update, you might see errors like NO_PUBKEY 1234567890AB...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fixing Windows Security 502 Bad Gateway Errors
                                
If you see a 502 Bad Gateway error in Windows Security (or the Windows Defender portal), it usual...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Fix Git Push Rejected (Non-Fast-Forward)
                                
You run git push and get a rejection: ! [rejected] main -> main (non-fast-forwar...

                            

                        
                    

                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Version Mismatch and Permission Denied in Windows Update
                                
When running Windows Update, you might encounter a "version mismatch" error followed by "permissi...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Go Modules Proxy Cache: Clear and Reset Steps
                                
If you're seeing stale or corrupted module versions when building Go projects, the local module c...



        
            
                
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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.