Many users still encounter 0x80073701 as it occurs due to missing system files. However, it wasn't the end of error 0x80073701 coming up. Then, in 2020 there were reports of users getting error 0x80073701 when trying to install 2020-03 Cumulative Update for Windows 10 Version 1909 (KB4541335). Many users experienced error 0x80073701 back in 2019 when Microsoft released the 2019-07 Cumulative Update for Windows 10 Version 1903 (KB4507453). Many users got this error when installing the 2016-12 Cumulative Update for Windows 10 Version 1607 (KB3206632). One of the oldest cases of users getting error 0x80073701 was way back in 2016 with 2016-10 Cumulative Update for Windows 10 Version 1607 (KB3197954 and KB3200970.) But, that won't be the last time users encounter this error. If you're looking for ways to fix this error, see the guides below. Getting Error 0x80073701 When Updating Windows 10? Here Are 5 Ways You Can Fix ThatĮrror 0x80073701 is ERROR_SXS_ASSEMBLY_MISSING, which means that some system files are missing, causing the update to fail.

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