Laptop has become slow - Dell XPS 15

rvibin

Estimable
Nov 7, 2014
2
0
4,510
Laptop config: i5@ 1.40Ghz | 6GB RAM | GeForce 525M

My DELL XPS 15(l502x) laptop has become slow while browsing and watching movies. I did a reset but the slowness still exists. I then ran hardware diagnostic test and got an error code that stated the hard drive is faulty. I got no other error in that test. Replaced the hard drive with a new one but the problem still exists. My battery stopped working few years back.

I have run the test and the link is give below.
http://www.userbenchmark.com/userrun/8681699

Thanks in advance.