I got svchost.exe virus, on my windows 7 computer the computer was so laggy I watched videos tried to unistall it. But it didn't work so I keep looking and nothing solved my problem. After a while I decided to. Install windows 10 and it was gone I decided to left computer on at night while I sleeping bocuse. I wanted to download some games on steam at the morning I sad that computer was laggy. And I went to task manager and found mulptiple svchost.exes.
They somehow didn't let my drivers update and all methods didn't work like at windows. I tried your antivirus but still I didn't solve it I thing it is. Bocuse then u go on new windows u get folder OldWindows and virus got from it to my new Windows folder and effect my new Windows. I cant escape this virus for a long time. Hope u can solve my problem.