[German]There are first (German) user reports that report errors when installing the update KB4512508 for Windows 10 Version 1903 (May 2019 Update). Either error code 0x8024200D or error code 0x800F081F is reported.
User reports about update error 0x800F081F
Shortly after the KB4512508 update for Windows 10 Version 1903 was released, users who ended the installation with the error 0x800F081F reported the error.
- At German site Dr. Windows a user Saw reports the information: I always get Error 0x800f081f with 2019-08 Cumulative update for Windows 10 version 1903 for x64-based systems (KB4512508) – […] With the *.msu downloaded from the Microsoft Update Catalog, the installation also failed.
- At German site winfuture there is a comment for this article, reporting also this error: ‘cannot be installed on 2 systems, error 0x800f081f’. Windows Update Repair didn’t help either’.
- Within this German Microsoft Answers forum thread a user reports, that Update KB4512508 for Windows 10 Version 1903 fails at 3 of 5 systems. 2019-08 Cumulative Update for Windows 10 Version 1903 for x64-based Systems (KB4512508) – Error 0x800f081f […]. Windows Update Repair etc. did not help anything.
- The colleagues at deskmodder.de also mentioned the bug in this article – and left a comment within the MS Answers forum post mentioned above.
The error code 0x800F081F stands for CBS_E_SOURCE_MISSING, i.e. the source files were not found. Some time ago I had discussed the error code in the blog post Windows 10 V1703: Fix for DISM error 0x800F081F. Also, Microsoft has published a support article related to a .NET installation error. Microsoft provides the information that a file or folder referenced during an update is not found.
For Windows 10 users who have this problem, Microsoft recommends that you use the Windows 10 installation media in question as a source for repair. Some advice can be found in this Microsoft article.
But since most Windows 10 users don’t really get anywhere with these hints, an Inplace Upgrade is the only repair option available. This means run setup.exe from an appropriate Windows 10 installation medium under your running Windows 10. This forces to install Windows 10 over the existing Windows 10, whereby data and programs are preserved. With this approach, however, missing features are installed, so that the update should be installable afterwards.
User reports about error 0x8024200D
Error code 0x8024200D came to my attention in connection with update KB4512508 in this forum post. In addition the colleagues of deskmodder.de mentioned the error code in this post. Error 0x8024200D stands for WU_E_DOWNLOAD_FAILED, i.e. Windows Update could not successfully download the required package from the Microsoft servers. This could be caused by third-party tools such as third-party virus scanners.
However, there is a much more profane explanation I have given in the blog post Windows Update ends with error 0x800f0982 / 0x8024200d. Microsoft doesn’t get it sorted, that the required install order of update packages is adhered to during installation. Actually, the latest Servicing Stack Update (SSU) must be installed before the cumulative update (CU). However, this fails regularly and Windows Update prefers to install the CU first. Then its installation fails and afterwards the SSU is installed. After a restart, the CU is found again and then successfully installed.
However, if the Servicing Stack is broken and no updates can be installed due to error 0x800F081F, the SSU cannot be installed successfully. Here you can only check whether a Windows repair (see Check and repair Windows system files and component store) can help. The problem with this approach: The sfc /scannow command is broken due to a Defender issue (see Microsoft confirms July 9, 2019 Updates breaks sfc in Windows) and probably returns errors.
And you can try to download the update packages from the Microsoft Update Catalog (CU and SSU). Then install the SSU and then the CU. Maybe it helps.