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Symptoms

If you are trying to update to the Windows 10 May 2019 Feature Update (Windows 10, version 1903), you may encounter an update compatibility hold and receive the message, "Intel Rapid Storage Technology (Intel RST): The inbox storage driver iastora.sys doesn’t work on these systems and causes stability problems on Windows. Check with your software/driver provider for an updated version that runs on this version of Windows."

Intel Rapid Storage Technology (Intel RST) Compatibility Hold

Cause

Intel and Microsoft have found incompatibility issues with certain versions of the Intel® Rapid Storage Technology (Intel® RST) drivers and the Windows 10 May 2019 Update.  If your device has an Intel® RST driver version between 15.1.0.1002 and 15.5.2.1053 installed, it cannot install the May 2019 Update.

Versions 15.5.2.1054 or later are compatible, and a device that has these drivers installed can install the Windows 10 May 2019 Update. For affected devices, the recommended version is 15.9.8.1050.

Next steps

This issue was resolved in KB4512941 and the safeguard hold has been removed. Please note, it can take up to 48 hours before you can update to offered Windows 10, version 1903.

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