Bsod

Hello,
Been having problems for a while with my Toshiba satellite laptop.
It started with the usual freezing randomly but right now it goes into bsod randomly, it freezes, slows down & is generally erratic. Bsod shows physical memory dump. I download alot of films from bitlord & don't keep up on protection, I recently cleaned & removed all I could & it seemed to help but now it's same as. I have an unwanted programme called quickshare that I tried to remove but now it's even saying my programme removal tool is not installed/working If I enter safe mode with networking all works fine other than 1 time I watched live football & it just froze on me. Il be honest I do abuse my laptop, had it maybe 6 years, no antivirus, past updates interrupted if I've no time is just close the lid or disconnect from internet, opps. I think that covers it, I'd really appreciate any help from anyone, I'm sure it can be saved, I really need sky go again.
Thanks for reading