About five days ago i used some kind of java based app to access my university's online file service, since then i have been having computer problems allthogh im not sure if that caused it but it started around that time. It lags doing the simplest of things and whenever i move my cursor over something it stays like that even after moving again, for example if put my mouse on a text box and move it still has the finger clicking icon instead og going back to the usual cursor. Playing LoL i also only get a 29 frame rate when previously it would be 60 and never drop. During the freezes the entire system locks, it isn't just the program, i cant move the mouse or enter taskmaster for those ten seconds and it is happening quite frequently