I did have the Ukash and solved it to start in safe mode (XP Home) with Malwarebytes on usb stick. That was the easy part. System back. Because I was very happy I did buy the prg for a lifetime, tnx guys so much. However after the solution there still seems to be a conflict with McAfee because updates didnt seems to possible anymore, though it seems to work. Also MS updates every time again not possible,"pc problem" Then I thought to be smart and get back to a windows restore point. Unfortunately I did get back to a restore point and found that the Ukash was back again, me fool. So Ukash is nestling itself also in restore point ! Tried the same solution as before, didn't work anymore. OK, then start in safe mode with network, dl rkill and malwarebytes, right ? Nono, system broken, network possibilities gone, reboot, checkdisk, long not seen ! Still not sure what the problem was but complete new windows install and all runs fine now. Btw the Shell key was called here explorer_new.exe wich I changed into explorer.exe (read) Manually in register. My 2 cents, I hope some can use this to avoid my problems. Still wondering why all problems, but now brandnew system and happy again.