In need of help with troubleshooting and hard drives!

Goaterino

Commendable
Oct 2, 2016
11
0
1,510
Hey,
I am in need of serious help with my pc at the moment, it will not get past the log in screen on windows 10. I log in and it will just have a black screen and am able to move my mouse around freely but not click on anything. I have tried taking it apart putting it back together, still the same problem, tried testing RAM both work. I have been having problems with the computer starting to struggle to run games i normally could like black ops 3, but i now can't even get past the log in screen, i am lead to believe it is my HDD which is causing these problems. Could it be anything else?
Also is there a way i can transfer the operating system and files onto a new hard drive? will i have to use another computer?