What cpu model and have you tried to uninstall mcafee and reinstall it runnin this program before reinstalling?
and reinstall from your account
How to uninstall reinstall see a link in my signature
Have you tried getting rid of Temp Files (%temp%), and checked for 3rd party application that might be conflicting with the Mcafee real-time scanner (what I mean is other antivirus program) ?
So I uninstalled McAfee, but before re-installing, I went back to work to see if the problem went away without this installed... but it didn't. The same issues came back as before. So at least one factor is eliminated. If all else fails, I can try a full Windows re-install. Thanks anyway.
Have you been running any "Registry Cleaners"? Other than Windows "Disk Clean/McAfee Quick Clean"?
They can actually do more harm than good,and wreak havoc on one,s system. Other than that, excluding an infection. It seems that your installation may be corrupted.
Did you follow PeaceKeeper,s instructions? As he stated, Guidelines/Instructions for doing a Clean Uninstall/Reinstall can be found below his Signature. Just make certain that you remove from your Control Panel/Add Remove/Program Features/Restart.
Then run the Latest MCPR Tool/Restart. I would then as he stated run the McAfee Pre-Install tool before going to your account to Download/Install your Software again. Sometimes it is best to (Save) to your desktop and close all applications/Browsers and go to that folder and install.
If all this does not resolve your issues, Technical Support is available 24/7 and can be reached by looking under "Useful Links" at the top of this page, or below my Signature.
I would do all as suggested, before attempting a complete "Windows Re-Install"
You might try running some of the Superb (Free) Tools listed in the (Second Link) below my Signature as well. To include the Latest McAfee "Getsusp Tool", please remember to enter your email address under preferences,before scanning. Also try the Malwarebytes (Free) Version only. No need to Activate the free trial, The (Free) Version will suffice.
Wishing you all the Best,