In addition to new non-security updates for Windows 10 and Windows 11 version 24H2, Microsoft released the so-called C-updates for those on Windows 11 version 23H2 or 22H2. KB5062663 (build numbers 22621.5699 and 22631.5699) is rolling out with some notable fixes and improvements for the file system, IME, networking, printer and stability improvements, and more.
Here is the changelog:
- [Country and Operator Settings Asset (COSA)] Fixed: This update brings profiles up to date for certain mobile operators.
- [File systems]
- Fixed: This update addresses an issue in the Resilient File System (ReFS) where using backup applications on large files could occasionally result in system memory becoming fully exhausted.
- Fixed: An issue where searching for PDF files in a shared folder could return incorrect error messages—such as “No More Files” or “STATUS_NO_MORE_FILES.” These errors disrupted output to the virtual PDF printer and interfered with backup processes.
- [Input (known issue)]
- Fixed: An issue when using the Microsoft Changjie IME (input method editor) for Traditional Chinese might cause problems such as not being able to form or select words, unresponsive spacebar or blank key, incorrect word output, or a broken candidate window display. This can occur after installing KB5062552.
- Fixed: This update addresses an issue that affects Phonetic input methods, including the Hindi Phonetic Input keyboard and the Marathi Phonetic keyboard, which might not work correctly after installing KB5062552.
- [Networking] Fixed: An issue where peripheral devices could take longer to work after resuming from hibernation on some devices with active cellular connections.
- [Printer] Improved: Printer names now appear more clearly when using IPP Directed Discovery, making it easier to identify printers during setup.
- [Stability issue] Fixed: This update addresses an issue observed in rare cases after installing the May 2025 security update and subsequent updates causing devices to experience stability issues. Some devices became unresponsive and stopped responding in specific scenarios.
- [Taskbar] Fixed: This update addresses an issue where the taskbar icons for accessibility features are not appearing.
You can get today"s update in Settings > Windows Update. KB5062663 is optional, so feel free to skip it if you do not need anything from the changelog. Alternatively, download KB5062663 from the Microsoft Update Catalog.