Seagate M3 HDD USB 3.0 portable too slow (or not).

[brigantium]

My Seagate M3 HDD USB 3.0 doesn't get past 32MB/s copying files (trying with 30-40GB files) on a clean an updated Windows 10 installation after trying (less) obvious 'fixes' and BIOS settings from dozens of people on different forums. However, if I use HDDTune, CrystalDiskMark multiple benchmark methods the read and write speeds are always ~110MB/s for that amount of data. Is there any explanation for this?, if so, is there an actual way to fix it?.

It's connected to a back USB 3.0 port (ASUS MAXIMUS IX CODE motherboard).

 

[demonix]

Have you actually benchmarked the drive that the data is already on since the issue might be the source rather then the destination drive as the transfer speed would depend on how fast the source drive is able to access the information.

 

[brigantium]

Yes, the other drive is a SSD. I have made some more tests and for some stupid reason the 'Optimize Drives' service is set to Manual, which has a huge impact on everything but benchmarks. After setting it to Auto I reach 110MB/s both ways.