McAfee alerted that it blocked a Trojan
Closed browser (Firefox) and got a brief BSOD
Comp restarted and I chose Safe Mode (w/o networking)
Ran anti-virus and it only scanned ~20% before shutting down comp
Rebooted in Safe Mode w/networking and re-scanned.
Completed and detected/removed 1 virus.
Re-scanned and went to bed.
Next day - booted and seemed OK. Not OK. Began false alerts and pop-ups, all desktop files disappeared except for trash can. Everything under START gone except for All Programs. Under All Programs, folders (empty) except for McAfee. Only way to get to internet and YOU is to launch McAfee and go to help website, which will launch Firefox.
McAfee tech suggests a sysfix.dll issue?
Installed and ran MalwareBYTES quick scan, cleaned (9) issues. Now I can see 'Computer' under START but no other folders/files.
Malwarebyte scan/clean, DDS and Attach logs below. 64-bit system so did not run gmer.