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Troubleshooting

Windows Security for Ubuntu Installation Checklist

Before You Install Ubuntu

If you're dual-booting Windows and Ubuntu, or replacing Windows...

Troubleshooting

BitLocker DNS Error 0x80072f8f: Causes and Fixes

When trying to activate BitLocker or recover a key, you may see error code 0x80072f8f


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix 'Profile File Locked' Chrome Error on Windows 10
                                
You try to open Chrome on Windows 10 and see “Your profile could not be opened correctly” or “The...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                WireGuard Handshake Timeout: Causes and Fixes
                                
If your WireGuard VPN connection drops after a few seconds or never establishes, you're likely se...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                How to Clear Windows Update Cache for Pending Installs
                                
You see 'Pending install' in Windows Update but the download or install never finishes. Sometimes...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fixing Windows Defender Authentication Failed Permission Denied
                                
You try to run a Windows Defender scan or update, but get an error like "Authentication f...



        
            
                
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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.