Windows 11 users are experiencing installation failures with the mandatory security update KB5062553, encountering error codes such as 0x8007371b, 0x800f0991, 0x80073712, and 0x80071a2d. The update, part of version 24H2, is supposed to install automatically but has left some users with a pending installation status. A suggested solution for installation failures is to use the .msu offline installer from the Microsoft Update Catalog, which has a 70% success rate. Users with Intel or AMD PCs should first install the Servicing Stack Update (SSU) KB5043080, while ARM PC users need a different SSU file. If issues persist, using the Media Creation Tool for an upgrade is recommended.
Additionally, the July 2025 update has introduced bugs affecting Windows Event Viewer, causing false Windows Firewall errors, which Microsoft has acknowledged. Users may see "Event 2042 for Windows Firewall with Advanced Security" errors, indicating a configuration read failure. Some users also report performance issues, including GUI freezes during installation, requiring hard shutdowns, and occasional Blue Screen of Death (BSOD) occurrences.