https://www.bleepingcomputer.com/news/microsoft/windows-10-kb5031445-preview-update-fixes-ctfmonexe-memory-leak-9-issues/ > Microsoft has released the optional KB5031445 Preview cumulative update for Windows 10 22H2 with nine improvements or fixes, including a fix for a memory leak in ctfmon.exe. > The KB5031445 cumulative update preview is part of Microsoft's "optional non-security preview updates" schedule, which are typically released on the fourth Tuesday of every month. This update allows Windows admins to test upcoming fixes and features that will be released in the upcoming November Patch Tuesday.