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Latest Troubleshooting Guides

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Troubleshooting

Stop BitLocker Asking for Password at Boot

If your Windows PC prompts you for a BitLocker password every time you boot up, you're likely usi...

Troubleshooting

BitLocker SSL Certificate Error: Troubleshooting Checklist

You're setting up BitLocker Network Unlock or managing BitLocker via Group Policy, and you see an...

Troubleshooting

How to Fix Windows Security Not Responding

Windows Security (formerly Windows Defender Security Center) may stop responding, hang on launch,...

Troubleshooting

Fix 'Access Denied' When Clearing Command Prompt Cache

You open Command Prompt, run a command like ipconfig /flushdns or del /f /s /q...


                    
                    
                        
                            
                            
                                Troubleshooting
                                Fixing PowerShell DNS Errors After a Windows Update
                                
After a recent Windows update, you may see errors in PowerShell related to DNS resolution—things ...
                            
                        
                    
                    
                    
                        
                            
                            
                                Troubleshooting
                                Windows Defender Offline Scan Setup Guide
                                
If your Windows PC is infected with malware that won't go away with a normal scan, a Windows Defe...



        
            
                
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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.