Hi,
Here are some troubleshooting steps that may help in solving the issue. It seems like a problem with the HDD itself.
- Start by loading in BIOS and see if it would still freeze because if it doesn't that means it's a problem with the HDD.
- Next to test is in Safe Mode, while in Safe Mode do observe if your PC will still freeze up or not.
- Also use the Hardware Diagnostics to test your HDD itself.
- Here's the complete guide to run Hardware Diagnostics:
http/acer--uk.custhelp.com/app/answers/detail/a_id/11589/~/testing-the-hard-disk
- You'll get an error message if your HDD is damaged or not.
- If your HDD test will pass your last option would be to reinstall Windows.