Oliver

Thanks again for your advice. I brought my pc to the service. I hope the can fix it.

Again thank you very much for your advice. -I ran Malwarebytes anti malware and spyhunter and removed any dangerous entries - the sfc /scannow procedure and restart brought no improvements -Yes I tried the right click in d the regedit window (left window and right window) and didn´t find the entries you´ve posted - services procedure I checked as you descibed. I changed entry fom "automatic (with delay)" to "automatic". "start" buttun was grey as you showd in screenshot above -Microsoft security essentials also cannot be updated the feeling grows that I´m not master in my house. I think about reinstalling the system, but it´s always such a big piece of work.

Haööo Wisecleaner Press. Is the details pane, the window right next to "components" ?

thank you. I´ll try these steps and keep you informed

My PC dos not allow to activate "Windows Update" nor Microsoft Essentials. Its not possible to acivate RealtimeGuard" in Essentials. Operating system:Windows Vista Business (64 bit) Service Pack 2 System root: C:\Windows Available physical memory: 24573 MB CPU: Intel® Xeon® CPU E5450 @ 3.00GHz Drive Info: C: 931,44 GB Internet Explorer: 8.0