KB5060526: Fixed: This update addresses an issue in the Input Service that causes increased memory usage

June 10, 2025— KB5060526 (OS Build 20348.3807)

Improvements
This security update includes quality improvements. The following summary outlines key issues addressed by the KB update after you install it. Also, included are available new features. The bold text within the brackets indicates the item or area of the change.

[Graphics]

1. Fixed: An issue where some characters appear wider than standard characters, and the sample paragraph in the font preview section doesn’t display correctly.
2. ​​​​​​​Fixed: This update addresses an issue where some GB18030-2022 characters don’t display correctly within the extended Chinese character set.

• [Memory leak] Fixed: This update addresses an issue in the Input Service that causes increased memory usage, potentially impacting performance in multi-user, multilingual, and remote desktop environments.
• [Settings] Fixed: This update addresses an issue in the Settings app where turning on the "Prohibit Access to Control Panel and PC Settings" policy could make the system repeatedly restart and automatically enter repair mode.
• [Windows Hello] ​​​​​​​Fixed: This update addresses an issue that prevents users from signing in with self-signed certificates when using Windows Hello for Business with the Key Trust model.​​​​​​​

If you installed earlier updates, your device downloads and installs only the new updates contained in this package.