The infamous "0x80070643 - ERROR_INSTALL_FAILURE" issue is back with one of the new Windows 10 updates KB5048239. Thankfully, there is a fix.
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There was a change in the way Windows 11 receives WinRE updates recently. However, Microsoft has confirmed these WinRE updates could also fail and has explained in detail why that is.
Earlier this year, Microsoft promised it was working on fix for "0x80070643 - ERROR_INSTALL_FAILURE that was happening when trying to install Windows 10 KB5034441 update. However, that's not to be.
Microsoft has addressed a security vulnerability that can lead to BitLocker Secure Boot bypass on both Windows 10 and 11. Alongside that, the company has also detailed how to resize the WinRE space.