Windows 10: SSD/USB3.0 Speed Drop

When transferring files from my external SSD/USB3.0 to my PC, the speed drops from around 300MB/s to 105MB/s.
It stays at 300MB/s almost 60% of the transfer, then it Drops.

What to do so that there is no Drop?

EDIT: Disabling the "Write Cache" for HDD in PC, the speed drops to around 45MB/s, instead of 105MB/s.





:)

 

Even though I plug in my USB3.0 mobile drive to USB3.0 on my laptop, the settings still show that "the drive can work faster when connected to USB3.0 port"

My mobile drive is a WD (western digital) 500g "My Passport" with USB3.0. My laptop is a Lenovo Yoga 2 13 with Core i5.

I have already sent the laptop for hardware check which shows my USB3.0 port works normally.

But when I plug in my mobile drive, the transfer speed stands still at about 40mb/s (which is the maximum speed for USB2.0) and the settings show that "this drive can work faster when connected to USB3.0"

How could I fix this?

 

Windows 10 and Intel USB 3.0 device drivers

Hi Chris, I haven't yet upgraded my Win8.1 PC to Win10, so I don't know if I'm going to have the same problem with Intel USB3.0 ports as when I upgraded from Win7. The problem you describe (USB2.0 speeds) is exactly the same. For the record, some hardware
just doesn't work at USB3.0 speeds, when plugged into certain USB3.0 ports. In the article below, it comments that they no longer advise the procedure for Win8.1, however it fixed the issue for me. Give it a try on Win10 and let us know how you go. I bet
plenty of others are having the same issue -maybe some don't even realise it!

Hope this does the trick!

Windows 8 and Intel USB 3.0 Host Controllers - Plugable

Cheers

 

ISO files are an archive format that results from making a sector-by-sector copy of every "dirty" (written-to) sector in a storage collection. Originally developed for optical media, ISOs are used for creating containers for all kinds of information including Windows images and install environments. Typically, throughput drops during copying as the size of the individual elements drops and the number goes up. I've seen the kind of graph you show in your screencap for many ISO transfers. I can't find a definitive source to confirm this, but my best speculation is that the drop-off occurs when the contents of the ISO switches from large binary files like .wim or .esd to the thousands of small individual files you will see in a mounted Windows ISO, especially in the /sources directory and its subsidiary directories.
HTH,
--Ed--

 

@EdTittel,

It seems like the OP is just copying the single ISO file itself and not extracting the contents of the file. That would be no different than copying a 2 or 3 GB WMV or AVI media file, for example. Personally, the file transfer shown in the OP looks perfectly normal to me - at least that is the way all my large file copies look like across my computers.

At the beginning you are seeing the various cache memories involved filling up, at the end you are seeing the actual writing to the final storage location occurring.

 

Yes, another good explanation, and probably more valid than mine. Thanks!
--Ed--