Windows 10 Version 2004: Issue with Optane Systems

[German]Users of systems with Intel Optane storage technology should not upgrade to the Windows 10 May 2020 Update (2004 version). This will cause issues – but there is a workaround from Intel.


Intel Optane  is a memory module technology first introduced in 2017 to improve the performance of desktop and laptop computers for less money. The system must have a 7th generation Intel Core processor (Kaby-Lake) and a 200 mainboard chipset.

Issues after Windows 10 V2004-Upgrade

Users with Intel Optane systems will face problems after upgrading to the Windows 10 May 2020 Update (version 2004). Someone on Twitter has raised the issue in the following tweet.

Another user describes the problem here in the Intel forum. Also in the Fedback Hub (only available under Windows 10) there are several entries (1, 2, 3). The affected users will get an Intel® Optane™ Memory Pinning Error: 

'Unable to load DLL 'iaStorAfsServiceApi.dll'


is displayed. The error message occurs because of a compatibility problem with installed drivers.

Support article shows a solution

Intel has therefore published this support article on the subject. The root cause of the problem is that with every major operating system update, all devices will be reinstalled with the best fitting drivers. This is the case with the function update to Windows 10 Version 2004.

Specifically, the RST driver has changed the way the Intel® Optane™ memory pinning components are installed. If at any time the driver has been updated from a version prior to to a newer version, the operating system update may attempt to reapply the removed installation files of the earlier versions. However, this may cause conflicts.

According to Intel, the solution is to use the Control Panel and the Programs and Features entry to select the Intel Optane Pinning Explorer Extensions listed there and then have them repaired. In a further step, the old Intel® Pinning Shell Extensions must be uninstalled. The steps are described in the support article. Just like Martin Geuß I can't try this workaround because of the lack of an Optane system.

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2 Responses to Windows 10 Version 2004: Issue with Optane Systems

  1. Chris Pugson says:

    A Sony VAIO laptop made in about the year 2010 could be so equipped. I look after a VAIO Model PCG-71312M. Early this year year I updated it from Windows 7 to Windows 10 1909. The SSD device worked but was not recognised as a SSD and could not be trimmed. I located drivers on the Intel web site and then it worked, was properly recognised as a SSD and could be trimmed. Windows 10 1909 installer could not find those drivers that I found. Without the Optane supporting software the system was also slower than it ought to have been.

    Thanks for the heads up.

  2. Metza says:

    I have a brand new Z390-A motherboard and Intel H10 32/512 Optane drive. I'm not using pinning, so the solution above won't fix my problems. Ever since installing 20-04… when the system wakes from sleep it is broken/running slow/locking up. I can't accurately describe the problem because it is different every time. Yesterday I couldn't get to the start menu to reboot and had to issue a command line reboot. The day before Firefox was just a white screen when launched. Anyways… no matter how the problem presents itself, it's always right after waking from sleep and all it takes is a reboot to get the computer back to normal. So there is something broken with Optane right now.

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