OS is installed on SSD and the second HDD is just a storage for games. I have it for 4-5 years already and never had a problem with it. Sometimes I do benchmarks to monitoring my system's health but few days ago when I did another bench it said that my HDD's read/write speed dropped down much.

This is what I had before http://www.userbenchmark.com/UserRun/5707192

And this what I had for last few days http://www.userbenchmark.com/UserRun/5776513

It became 2-3 times slower than it was suddenly!

I have all drivers up-to-date as long as all windows 10 updates. I did not do any soft/hardware changes that can caused it. What i tried to do already:

  • Checked SMART status in HDTune/AIDA64 - it is OK
  • Did defragmentation
  • Tried to change mb ports and SATA cabel
  • The most important - tested an HDD on my sister's computer, nothing changed.

Because of it I think it is faulty hard drive, not OS/drivers/something else. Am I right? Or what can caused such changes? I really think to just buy a new one.

  • Yes, hardware failure is a logical assumption when a five-year-old piece of equipment suddenly start having problems. – Scott Nov 14 '17 at 2:45
  • Yep, I think so too. It is just strange that the SMART status and etc is ok and everything functions normally except this speed problem. – Mike S Nov 14 '17 at 3:11
  • You should use SeaTools and perform a long test on the drive. First backup any data you need! – Appleoddity Nov 14 '17 at 4:00
  • Did it already and HDD passed it – Mike S Nov 14 '17 at 4:06

I formatted and it returned my HDD's speed back.

  • 1
    No, if the problem was resolved, information describing the resolution is an answer, and it does belong in the answer section. – Scott Nov 15 '17 at 13:56

Another possible solution is clean up the drive with help of Acronis True Image or/and System Clean-up


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