Very High memory usage when Idle

[tometom]

My computer has a normal memory usage of around 70%.
It's using 6 GB out of the 8 I have and when running games the memory usage reaches 85%-95%.
Im on a Windows 8 PC (8.1 now).
After games crash due to the high memory usage, i become unable to open Ctrl+Alt+Del, but this problem only lasts for about 20 seconds.
When I check the resource monitor it states tha only 20 MB of memory are actually free and its using constantly 6300 MB.

 

[Saberus]

Malware or virus probably. Try and scan the system using MalwareBytes and an up-to-date antivirus. You may have to run them from a live boot disc.

 

[tometom]

Malware or virus probably. Try and scan the system using MalwareBytes and an up-to-date antivirus. You may have to run them from a live boot disc.

I had previously scan with MWB and the problem is still very real

 

[Saberus]

When looking in Task Manager, click on the Memory header and see what's chewing up the most memory.

Was MWB up-to-date when you scanned, and did you also check with an antivirus?

I use 8.1 as well, and I find that if I leave Chrome running too long it starts eating memory like candy, and some of the add-ons don't quit when Chrome is closed, if this is the case, find those add-ons and remove them.

 

[tometom]

When looking in Task Manager, click on the Memory header and see what's chewing up the most memory.

Was MWB up-to-date when you scanned, and did you also check with an antivirus?

I use 8.1 as well, and I find that if I leave Chrome running too long it starts eating memory like candy, and some of the add-ons don't quit when Chrome is closed, if this is the case, find those add-ons and remove them.

I did disable all the add-ons and extensions and little was the effect
I went to another thread and as was suggested, I disabled A LOT of startup apps. It reduced normal memory usage to a mere 20%.
Thanks for you help anyway