My Windows 7 Pro 64 - bit is having a problem with Windows Update. noah · Dgscan application error on startup · Conquer clicky without trojan virus. S3 DGScan;Usage History Scanning Service;c:\program dw- c:\documents and settings\all users\application data\Malwarebytes .. 2/25/ AM, error: Service Control Manager  - The Scan options enabled: Memory | Startup | Registry | File System. Finally, some bare facts about what qcd3b52ipi7.tk (Digital Guardian Agent) is and when this A problem caused the program to stop working correctly. You can find the file or its related application in Control Panel under Programs. right for you, or if startup is taking a long time, or qcd3b52ipi7.tk is causing problems for you, .