Solve '100% load HDD' problem on Dell Inspirion 3542



  • Try adding more memory. 4–8GB RAM should be good enough for that model. (The thrashing didn't go away completely for me but after the computer was on for a few minutes it worked fine! Required files probably got cached in memory)
  • An SSD is an easy fix for Drive Thrashing and related performance issues but the underlying problem must be corrected or the SSD might wear out faster. (I didnt have a spare SSD to try at that time, but im sure it will fix it or atleast alleviate it)
  • Try a different HDD, preferably a 7200RPM or even one from another laptop which works fine. Ensure the drive is not failing. If its okay, its possible that the particular model just has poor Random IO performance. (The one i tried to fix used a slim 7mm Toshiba drive which had pretty poor performance. The performance was much better when i tried putting in an old 7200 RPM Momentus XT which I had. It rarely occurred after that)
  • Check for malware. Make sure the computer is idle (and not downloading/installing updates). See what is using up the system resources. Try to remove the malware manually. If you find a suspicious process running, go to the directory in which its file is located. After confirming its malware/non essential file, note the directory. Boot into safe mode and delete it. Be Warned! You might delete essential/System files. Don't delete files you're not sure about.
  • Disable unnecessary startup programs.
In my case more RAM and a better Hard Drive fixed it. Hope it helps!

Or Contact Dell Support Team by Dell Support Number +1-877-353-1149.

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