My Computer Is Running at Full Capacity. A computer running at full capacity could mean one of three things, which are often confused, but have their own issues and consequences. CPU usage refers ...

“My last two “system health checkers” - currently Norton Utilities Premium - frequently tells me that “System Memory is Low” with numbers like 28% or 42%.

To figure out why your PC is slow, try eliminating startup programs, using fewer browser tabs, and changing the way you schedule scans and syncing.

Your computer could also be running out of space — and without space, your machine runs out of places to store data and ends up slowing down.