Microsoft's September cumulative for Windows 11 (KB5065426) landed as a routine Patch Tuesday release but quickly became a headache for many users: installers fail with a slew of cryptic error codes, Microsoft Update Catalog packages sometimes abort mid‑install, and, in a number of reports...
dism
enterprise it
file sharing
in-place upgrade
installation failure
kb5065426
known issues
media creation tool
networkcredentials
os build 26100.6584
patch tuesday
powershell direct
sfc
smb
ssu-lcu
update assistant
windows 11
windows 11 24h2
windows update
windows update cache
