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Latest Troubleshooting Guides

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Troubleshooting

Fix Windows Update Proxy Error on Windows 10

If you see a proxy error when running Windows Update on Windows 10, it usually means the system c...

Troubleshooting

How to Disable Git SSL Certificate Verification Temporarily

If you see an error like fatal: unable to access '...': SSL certificate problem: unable to ...


                    
                    
                        
                            
                            
                                Troubleshooting
                                BitLocker Authentication Failed Troubleshooting Checklist
                                
If you see a BitLocker authentication failed error during startup, Windows cannot unlock the driv...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                UFW Allow Port Not Working After Reboot: Fixes That Actually Work
                                
You added a UFW rule to allow a port, it works fine until you reboot, then the port is blocked ag...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Defender Token Expired Registry Error
                                
If you see an error like "Token expired" in Windows Security or Event Viewer, it usually...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Activation Module Not Found Due to Corrupted Files
                                
If you see the error "Windows activation module not found" and suspect corrupted files are the ca...



        
            
                
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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.