Microsoft released update KB5005932 for Windows 10 in 2004, 20H2, and 21H1 on August 24, 2021. This update fixes error 0x800F0984 (PSFX_E_MATCHING_BINARY_MISSING), which prevents updates from being installed on Windows 10.
This bug is present in different versions of Windows 10 (since 2004). The update is optional and will not be done automatically.






One solution, when it downloads the update files normally, but when it goes to install them it sends a message that it has a problem. In my case, even if I close the update, restart and re-download the files, it still sends a problem message. Also, when I download the huge file from Microsoft for offline installation of the update, it still gets a message about a problem.
I personally tried all the solutions on the market, until by chance he did the following and it worked:
Start> Run> type cleanmgr> in the window that appears I select them all> click OK> I accept the confirmation> I wait for it to clear them (it takes a while if there are enough files)> as soon as it is finished, the delete window closes itself.
Now, whenever there is a problem installing the update, this solution always works on my PC.