Back in 2013, I've bought a PC and a copy of Windows 8 from the only Computer store in Nuuk (Greenland). The computer came with MS-DOS. I installed Windows 8 on it and everything seemed to work fine. Before few weeks, I upgraded to Windows 10 and since then, some programs and games are randomly crashing, freezing and all kinds of terrible stuff, which haven't been happening in Windows 8.
Even worse is the fact that when they crash, the whole PC should be restarted as it doesn't respond.
If you know anything about it, feel free to drop a reply. Should I get back to Windows 8 or directly downgrade to something like Windows 7 or even XP ?