PC is spending most of it's time at 100% CPU, but the heavy hitter seems
to be hiding in SVCHOST.

viz: http://tinyurl.com/jyr7l3l

Response time was (and still is) at a crawl.

Ran MalwareBytes and removed a couple of bad actors, ran the Norton
uninstall for Comcast's competing anti-virus (Avast already installed).

Rebooted, at first it seemed to be better - but then back to 100% except
that something called "TrustedInstaller" was the heavy hitter for a few
minutes... and then it was back to SVCHOST.

Looks like TrustedInstaller is a legitimate Windows system app that,
among other things, is a player in WindowsUpdate.

Unencumbered by any knowledge or much grey matter, I would theorize that
somebody has managed to inadvertently install something that doesn't
want to die or be killed off.

But what?

Anybody else been here ?

Windows Vista Home Premium, SP2, 32-bit
AMD Athlon LE-11620 @2.4 GHz w/2GB of RAM

Might it be time to cave in and "Upgrade" to Windows 10?
Or would that be jumping from the frying pan into the fire
w/only 2 gigs of RAM and that rather old CPU?
--
Pete Cresswell