If uninstalling KB5063878 on Windows 11 throws the installer error code 0x800f0905, there are practical, verifiable steps that will usually get you past the failure — but the decision to remove the patch has to be weighed carefully because the August cumulative update in question has been tied...
0x800f0905
catroot2
dism
kb5063878
known issue rollback
lcu
ndi
ndi streaming
obs
rudp
sfc
show or hide updates
single tcp
softwaredistribution
ssu
system file checker
udp
windows 11
windows update troubleshooter
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