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ERROR_SXS_ASSEMBLY_MISSING (0x80073701) on Windows Server 2016 -> 2025

Original blog post

Warning

These scripts are provided as is. It is highly recommended you take a backup or snapshot of your system BEFORE running these scripts.

Scripts

fix-sxs-2016-2019.ps1

I have run this script on multiple servers and had success with it, it should work on Server 2016 -> 2019

fix-sxs-2022-2025.ps1

This script was submitted by a reader as a comment suggesting it works in Server 2022 -> 2025.

I have not personally tried this script but did give it a quick read over while reformatting it and do not see anything malicious in it.

If you run this script successfully on Windows Server 2022 or 2025 please post a comment on the original blog post so I can update it accordingly.