I purchased laptop a few months back: Lenovo Ideapad 520 - 8th Gen Core i7 QuadCore 20GB 1TB 4-GB Nvidia MX150.
- Windows 10 Pro (fully updated).
- No Anti-Virus.
- Some light development tools.
- No servers.
After using it for a few days, I immediately noticed unbelievably bad performance during startup which took up to 15 minutes. The HDD light would stay on constantly for hours even when simple applications were running such as MS Word, VLC, etc.
I reinstalled Windows multiple times in vain. I even had the vendor replace the hard drive with a brand new one. Same results.
The Task Manager shows 100% utilization of HDD activity but the individual processes consumption does not add to 100%.
Not sure how to diagnose this and any guidance would be appreciated.