HP desktop w/ win vista

Keeps rebooting/restarting after I fixed the network problem with ‘netsh winsock reset’. Before fixing, the pc was able to boot up but unable to get on the internet nor did it detect any network. After fixing, the network/internet works after the first bootup. Thereafter it keeps rebooting, I’m assuming that some virus came thru once it has network access. Since then it been rebooting, please help I tried things in safe mode but not everything can be scan in safe mode. Thanks all for your help.