I clone it to a good new drive. This is how it's done and can really upset the new to this tech.
As to the drivers I would NOT go down the road you went. I would stick to the factory issued OS and drivers unless I took the machine up to W10.
The final bad news is that at a few years old you do see these gamers bluescreen a lot and repair requires a fresh OS factory restore and if that fails, usually a new motherboard.
hi there.
i recently have bluescreen problem on windows 8.1 lenovo z500 laptop .there is nothing new no specific app instalation no drivers update no nothing just normal use as before i even restore my windows to days back and it helped for 1 or 2 days but after that problem begin again and this time seems to cause by my nvidia i can't play games with my nvidia graphic card any more they stuck on logo even in the nvidia control panel the spining logo is not there anymore !! i tryed and removed driver with display adapter uninstaller (ddu) in safe mod and reinstall it for 2 or 3 times sometimes nvidia dirver install could not t find my compatible hardware to install driver ! after that i manage to install driver and restarting windows first few seconds all things in nvidia control panel is normal and there is spinnig logo but if i try to run game with my nvidia cart it runs for first and i will get bluescreen in game or it don't run and all things go crazy with nvidia control panel again there will be no spinning logo for preview and if i touch anything in nvidia control panel device get freez and i have to reset it with force powering of with power button . all games run with integrated graphic card no problem . but in the other hand i get blue screen in normal use too(not more common but still there in 7 blue screen that i have got recently 2 of them did happend when i had do nothing with graphic card) like browsing web page or just computer is on and do nothing or no games in background so i am really confused i have a report from my 7 recently blue screen in text file from BlueScreenView and upload it in google drive so if its possible take a look at it . and i checked my hdd hard with hd tune and all was normal except "calibration retry count" that it was from first day and it is normal in some seagate hdds.but . i would be very thankful for you suggestions .
here is nvidia control panel:https://drive.google.com/open?id=0B6yNQoc-ULJiZnB0YjJFLU1COTQ
and here is my dump files report:https://drive.google.com/open?id=0B6yNQoc-ULJiVUZQLS05dVVRdXM

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