You're not being ignored - I had no specific help to offer.
If safe mode is all you have, then what happens with safe mode with networking.
If not stable under any circumstances & if not able to use System Restore.....
Then the approach needs to capture error messages or mdumps. This means select the menu item that halts the boot on error (as often as needed).
Reboots/crashes -- ordinarily this points to 'Gudes & Solved Issues'
If given the opportunity, disable firewall added to the computer. Ditto for the AV. This is specific to 'pages not displayed'
'Not responding' ? Just IE? Random applications?
IE could be corrupted due to virus.
Random could be hardware, memory, drivers, etc.
Take a deep breath.......focus...........give us a heads up