Strange memory leak

f5alcon · March 22, 2015

I am running 64 bit Windows 7.I have 12GB of memory.

My computer slowly uses up all of the available RAM. There are not any processes listed in task manager that show what is consuming the memory, it doesn't add up. I use a rainmeter skin that shows used and free memory and that is how I noticed it, but it is confirmed in task manager and Windows performance monitor. I was using Avira antivirus and it didn't find anything, switched to bitdefender, it doesnt find anything, ran superantispyware, malwarebytes and spybot search and destroy found nothing. Uninstalled unneeded programs and ran CCcleaner.I tried using a ram cleaner, ramrush but it only frees a few hundred MBs.

If I use sysinternals rammap it shows a lot used of private process, but doesn't say what they process is, It will use 4 or 5 GB. The page table also constant increases in size.I used Windows performance analyzer and the page table shows an unknown tag using 2GB. It will slowly dip over a few days from about 9GB free on a reboot down to about 1.5GB free, at which point my system starts to lag and I have to reboot. I sleep the computer at night and when I am not home. Rammap can clear some of the processes and get me back to about 4GB, but not what I have when it first boots. Does anybody have any idea on how to find the source besides uninstalling programs one by one or reinstalling Windows?

I have a hijackthis log if needed.