I've done the scans and prepared the log files. Well, i have some problems on my PC. I have Windows XP Media Center, Service Pack 2. Recently, a week ago, my windows crashed and did'nt want to work/start. I tried to Recover the windows and the only thing that i could do was, form the Recovery console/dos, to replace a system/configuration file. I replaced this file: C:\WINDOWS\system32\config\system with C:\WINDOWS\repair\system Fortunately after this process my Windows worked again! And that was GREAT at that moment. But now, for example, i can't install Dreamweaver CS5, that i downloaded yesterday. I click on the set-up.exe but nothing happens... Than i try to "Run As..." me again, 'cause i'm the only user of the PC, and it gives me an error from Adobe: The installer can't be initialized. And i have also other similar problems now. I can't uninstall Dreamweaver CS4 that doesn't work anymore after my windows crash and also other programs. So i don't know what to do and if there's a virus on my PC or something else. I hope that i explained well my problem. Thank you very much!!!