Microsoft’s August 2025 security rollup hardened Windows Installer to close a privilege‑escalation hole, but the change has also begun prompting unexpected User Account Control (UAC) credential requests and breaking app installations for standard (non‑administrator) users across many Windows...
admin elevation
app packaging
august 2025
autodesk
configmgr sccm
cve-2025-50173
enterprise deployment
kb5063878
kir
known issue rollback
msi repair
msi-error-1730
office 2010
per-user vs per-machine
security hardening
uac prompts
windows 10
windows 11
windows installation
windows server
Microsoft has acknowledged a compatibility regression introduced by the August 12, 2025 cumulative Windows updates that can cause unexpected User Account Control (UAC) elevation prompts and MSI Error 1730 failures for non‑administrator users when applications trigger Windows Installer (MSI)...
Microsoft has confirmed that its August 12, 2025 cumulative updates — most notably KB5063878 for Windows 11 (OS Build 26100.4946) and companion packages for Windows 10 and Windows Server — introduced a UAC-related regression that prevents many non‑administrator users from performing routine...
cve-2025-50173
deployment
enterprise it
isvs
kb5063878
known issue rollback
msi
msi-error-1730
patch
regression
security
sysadmin
uac
update
windows
windows 10
windows 11
windows installation
windows server
wsus-sccm