So one day, the Intel Driver Assistant downloaded an "out of date" driver - the Intel Rapid Storage Technology drivers and installed it. It sat in my laptop for weeks, and nothing bad happened. But then, I noticed my computer would get very slow after I leave it on for more than 2 days. After looking into task manager, my non-paged pool is at 3.6GB. Using PoolMon, the thing that was causing it was iaStorA.sys (Intel Rapid Storage Technology). I then uninstalled it using Programs and Features menu, thinking that the problem was fixed. Turns out, iaStorA.sys was still there, and it was still causing memory leaks.
i tried out the methods below, didn't work either.
https://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/uninstalling-the-intelr-rapid-storage-technology/e3c4b6d6-56ba-4ac5-be50-89843c9d9b22
How do I get rid of it? It's mildly annoying to reboot my laptop every day.