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Win 10 X64 NVME slow speed errors and fixes.
My Samsung 960 Pro NVME 512gb was running too slow and found a few issues.
Performance should be at least a minm. 3000/2000 speed vs 2000/148-256 as I was getting.
Horrible when my computer runs at Pentium 4 speeds but with i7-8700k, it is enough to make anyone think of buying a Apple.
When I read the news that Win 11 had a similar driver issue, as I have identified with the drivers, I thought I would post this here.
Hopefully it can help everyone else having similar issues.
Hardware:
Clevo Laptop with i7-8700k + NV1080GTX + 2x NVME + 2x Sata rotational disks, etc...
Obviously with this speced laptop it is 100% performing or has zero electricity, no other logic is possible.
Testing:
After 25x clean format and reinstall of Win10 1709 - 1909 x64, (no interested in latest MS spam versions) this results below is consistent / culprits.
1. Multiple versions of Asssd is all over the place vs what task manager speed indication or other software speeds reports = Asssd is unreliable for my testing. Same issues with older TeraCopy programand speed reporting discrepancies.
2. Crystal Disk Mark 8.0.4. X64 was the 1st reliable disk speed test software I found.
Settings to test =
Select Samsung 960 Pro disk, 3x 1gb, for USB and NVME is sufficient to get a decent idea about the speed vs hat you ko your hardware is rated as.
So I narrowed it down to these culprits.
1. Microsoft Nvme drivers is defective, as if that is news.
2. Samsung NVME drivers:
Multiple versions from 2.x.x to latest 3.x.x NVME drivers is unstable and or applies erratic power saving parameters to the NVME causing ridiculous speed and unpleasant user experience. = Failed Samsung driver/s.
3. Actual stable working max speed NVME driver is:
MS ( Standard NVME Express Controller 10.0.17763.292. )
Samsung 960 Pro runs at 3360/2090 speed in Crystal Disk Mark 8.0.4. X64 when using this driver.
4. Set and fix the power profile:
Only decent working Power Profile for me = Ultimate.pow , all at max performance mode settings and all other power profiles deleted powercfg -D .... , yes including disabling HibernateEnable 0 via registry setting, and removing other irritations from MS power profile.
5. Driver Installation issues:
With this driver active it seems it did not take hold or load properly after multiple reboots, and continued at lower speeds, very strange ?
Fix:
In Device manager - Storage Controllers - right click and uninstall the NVME driver, Windows complains and do the same with the actual Samsung NVME 960 pro listed under Disk Drives = right click and uninstall, yes even if it is your C: drive. Same with other NVME drives installed in your system.
Then reboot and it seems to load the correct driver.
Why this steps was necessary in the majority of the 25x clean Win 10 x64 1709 - 1909 installs on the same NVME/s is strange.
Same issues for Thunderbolt and USB-C 3.1 /3.2 drivers and USB sticks, slow Sandisk Extreme Pro 64gb.
After the fix 270MB/s x 140MB/s avg. Before write speeds of eight = 237MB/s x 8MB/s hell no.
And as I was using this Sandisk Extreme pro as a Win 10 usb stick to do repairs / virus scans etc.. , I needed max speed when booting of the Sandisk USB in Windows 10 as I know the drive is capable off, and same if just in USB mode to copy files onto it.
Lastly use a driver backup program, Double Driver is old but work well enough, then on next win 10 install load your backed up drivers with Double Driver and after again run the latest Intel INF setup program as well as USB C + Thunderbolt 3 or 4 drivers just to make sure it is properly active.
USB-C or Thunderbolt, test and eject / unplug then move to alternative USB-C / thunderbolt port and test again, this seem to wake something USB up to run at full speed.
Yes always with my Win 10 updates disabled, don't need more spyware and broken drivers from MS to irritate me again.
Conclusion:
NVME drivers, power profile, Uninstall drivers + uninstall NVME / Samsung 960 Pro 512 / Adata ...., do the same for slow USB's
If not sure about hardware or software as being the problem, use a linux Iso to USB solution, Linux Mint / PcLinux + Ventoy = drop the Linux ISO files onto a USB stick. Or a Win 10 PE that is virus free or Kaspersky antivirus live cd on USB or similar.
Boot from the USB into the Linux Live CD mode and test with the DISK partition program, Benchmark options is normally where the star type settings icon is below the actual disk layout, to see if your hardware or your software is the problem causing slow disk speeds. Yes in Linux you might get speeds Windows will never be capable of reaching or a dud driver giving you too slow speeds.
Hope this helps, as it frustrated the hell out of me and with 200 run about answers all over the internet that did not solve my problem.
No, Windows update did not fix this driver issue not in 1709 - Win 11, had to do it manually up to the time of writing this.
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