Not sure this is the correct forum for my query, but here goes . . .
We have a desktop and a laptop, not networked. Both run under Win 8, and we use both Google Chrome and IE. For security we use McAfee and Malwarebytes. Desktop runs OK.
For a little while, however, laptop has had hiccups with both McAfee and Malwarebytes. As a good example, yesterday Malwarebytes said it had finished with no probs identified, but the screen froze.
Ran full McAfee scan overnight and it got to 99% checked (280,000 items) without finding or fixing any issues. Then it stopped. Doesn't matter how long I wait. Doughnut is still revolving. On this occasion the file shown as being checked was C\...\mstscax.dll . However the % checked has varied on other runs and the item being checked seems to differ. Can't run task monitor, or clear the screen (unless I do a nasty).
Other apps seem to operate OK and no probs with desktop..
Someone suggested a broken link/s somewhere. Is there an app to find and correct that/those? Or can you guys propose a different diagnosis please? Preferably in words of one syllable, because I'm not at all techie.