Most of my games keep crashing

When I bought my laptop, it was a windows 8, but then I've updated to windows 10. A about a year ago. My windows 10 was fine, until something recently happened. So about three weeks ago, I was just doing what I usually do on my spare time, which is playing some games. Everything was normal until it suddenly crashed, forcing me to get the blue screen of death. I thought it was just some malfunction and restarted the computer, hoping that everything would run smoothly again. A bit later, it would start to randomly crash at different times after I'm about 5 minutes into my computer, even if I'm not playing a game, only searching on the webbrower. Every time it would crash it would give me the blue screen of death. Every time it would crash, it would give me a different error code. The ones that I have recorded are the following: system_service_exception , bad_pool_header , IRQL_NOT_LESS_OR_EQUAL and page_fault_in_nonpaged_area. There were some other long codes but I didn't have the time to record it, as the BSOD only popped up for about 2 seconds then it restarted. I thought that there was a faulty on my windows, so I reset my computer into its factory settings. After that the BSOD still occured at first, but then at sometime it stopped. But now the problem is that whenever I would try to run my games, almost all of my games were crashing. Sometimes when I would load up a game like league of legends, for example, my action center would notify me that "application LeagueClientUx has been blocked for accessing Graphics hardware." same thing for CS:GO, where it would notify me that "Application csgo.exe has been blocked for accessing Graphics hardware." Due to this I've decided to download some of my old games that I don't use anymore to test out this issue. Out of all of my games I've downloaded to test, Only minecraft seemed to work perfectly fine. I was thinking about changing out my ram maybe because its faulty due to the errors I was getting, but I really dont wanna spend around 100 bucks for a new ram. I have already tried to update my graphics cards and uninstalled and reinstalled them. My PC has two graphics cards (one AMD Radeon M9 M725 and the other one is Intel(R) HD graphics 5500.) They alternate depending on if I am gaming or just browsing the internet. What should I do? Any ideas?