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Latest Troubleshooting Guides

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Troubleshooting

Fix OneDrive 'Permission Denied' Sign-In Errors

When OneDrive refuses to sign in and throws a 'permission denied' error, it usually means the app...

Troubleshooting

How to Fix Command Prompt Permission Denied (Administrator Fix)

You open Command Prompt, type a command, and get access is denied or permissio...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix 'Windows Security Application Not Found' on Ubuntu
                                
When running Windows applications through Wine or PlayOnLinux on Ubuntu, you might see an error l...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Chrome Proxy Authentication Failed Profile Error
                                
If you see 'proxy authentication failed' when using a specific Chrome profile, the browser can't ...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix Windows Defender Real-Time Protection Access Denied
                                
You try to turn on Windows Defender real-time protection but get an 'access denied' message. This...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Fix OneDrive Sync Token Expired Error in Office 365
                                
If you see a message like 'Sync token expired' or 'Access token expired' in OneDrive for Office 3...



        
            
                
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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.