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Windows 7: Why does copying files start fast then slow down so dramatically?

12 Dec 2017   #11

Windows 7 HP 64

MSconfig doesn't disable antivirus.
Try a test booting in safe mode.

My System SpecsSystem Spec
12 Dec 2017   #12

Windows 7 Home Premium SP1 64-bit

OK... I can try, thanks: but to be honest I don't think that's the issue. Why not? Because I have been copying all day and since the mid-afternoon (that's five hours now), the transfer has been running at 30-40MB/s non-stop. With anti-virus on. Had I turned AV off, I would have thought I had found the problem. Easy to make quick conclusions!
My System SpecsSystem Spec
12 Dec 2017   #13

Windows 7 HP 64

Normally AV protect it self and it can't be turned off by MSConfig.
Safe mode doesn't load all auto start programs, including AV.
My System SpecsSystem Spec


 Why does copying files start fast then slow down so dramatically?

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