92% of memory usage that is not accounted for in Taskmanager

[Nachmanowicz]

Since yesterday sometimes my computer, which has 16gb of RAM, shoots up to 90% + of memory usage. It is not accounted for by any program in Task Manager.

Anyone has any idea how to solve it?

 

[Colif]

tried an anti virus scan or run malwarebytes?

Try doing a clean boot and see if you get same result. Read instruction, careful NOT to turn off all MS services or windows won't load right: https://support.microsoft.com/en-au/help/929135/how-to-perform-a-clean-boot-in-windows

if it stops the usage, slowly add programs back to startup to find cause.

If it doesn't help, have a look in resounrce monitor (in task manager, in performance tab, click Open resource monitor at bottom. Look on memory tab and see what it shows as highest.

its possibly a driver, what motherboard do you have?

 

[little_me]

And pointing out since it's not been mentioned here, if you have diskeeper and have Intellimemory caching on (it's on by default, limited to 4GB on home and no limit on pro) it will use available ram for caching.
Said caching will NOT be marked as used by diskeeper or any other process in task manager, resource manager or process explorer or anything else I know of.

Normally it is not an issue since most games/things can actually request ram and not just try to use it which is then freed as necessary. If out of memory errors happen, just disable said feature temporarily (or permanently if you want 90% more useless reads/writes to disk)

so.. that applies only if you have diskeeper home/prof installed.

 

[Colif]

People still use diskeeper? I had it on my last PC but i didn't have an ssd as boot drive then. So between it and win 10 caching ram, you could end up with very little free.