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Troubleshooting

Windows 11 Update Failed Blue Screen Rollback Fix

You start your PC after a Windows 11 update and get a blue screen, then it rolls back. This artic...

Troubleshooting

Fix Nginx Upstream Connection Refused in Proxy Pass

When Nginx returns a 502 Bad Gateway or logs upstream connection refused


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows 11 Update Stuck at 0% – SoftwareDistribution Folder
                                
If your Windows 11 update is stuck at 0% and not progressing, the SoftwareDistribution
                            

                        
                    

                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Cloudflare 522 Error with Nginx Configuration
                                
You're seeing a Cloudflare 522 error: connection timed out between Cloudflare and your origin...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Windows Explorer Keeps Restarting in Windows 11: Fixes
                                
If Windows Explorer keeps restarting on your Windows 11 PC, you'll see the taskbar and deskto...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Update Error 0x80070005 with a Clean Boot
                                
If you see Windows Update error 0x80070005, it usually means a program or service is interfering ...



        
            
                
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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.