The laptop freezes randomly for a few seconds. After a while, it starts working properly but eventually freezes up again. Time intervals between these failures may vary.
1. Software-related problem (spyware or virus).
2. Failing hard drive.
Possible troubleshooting steps and repair solution:
First of all, scan your laptop for viruses and spyware. Remove any malware and test the laptop again.
If the laptop still freezes intermittently, back up all personal data and try reinstalling the operating system from scratch.
It’s possible that this intermittent freezing is related to the hard drive failure. Listen for sounds coming from the hard drive when the laptop freezes up. If the hard drive makes repetitive clicking sounds, most likely it’s failing.
In some cases, reformatting the hard drive and reinstalling software from scratch fixes the problem. If not, you’ll have to replace the hard drive with a new one.