Trying to fix my dad's PC that has been on the the decline for a few weeks. He had a tech dude look at it for a few hrs one night, couldn't fix it and said it was a virus or malware. I got a hold of it and have run a few bootable AV's to no avail ie. kaspersky, AVG, Hitman Pro.
The oldest issue I could find was the failure to update the .net framework 4.5.1 update for maybe 3 months. this had been tried multiple times.
I'm unsure what the cause is, any help would be appreciated, some of the symptoms that I can think of are;
Internet browser failure - Internet explorer will only get to a white screen then shut down and sometimes take the PC with it. Chrome (before I removed it) was loading, but giving the 'aww Snap' blue screen.
Windows Update is failing, mainly on the .net framework update - I tried resetting update with the same results.
User Account control is not functioning correctly - tried to create a new administrator account in case of corrupt user but the button to create new account is not responding.
There are some other issues but I think they mainly tie back to these primary failures. As a result of these failures I haven't been ab;e to get any solid programs installed to do any good. All installations come up with different faults, either "error 1719", or "invalid picture" or "windows installer not installed correctly".
I know I have spent almost a week of evenings trying to solve this with now joy, any help or advice would be greatly appreciated.
Apologies, this is my first post, if there's anything else I can add please let me know.