Security News > 2023 > October > Windows 10 KB5031445 preview update fixes ctfmon.exe memory leak, 9 issues
![Windows 10 KB5031445 preview update fixes ctfmon.exe memory leak, 9 issues](/static/build/img/news/windows-10-kb5031445-preview-update-fixes-ctfmon-exe-memory-leak-9-issues-medium.jpg)
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.
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.
Windows users can install this update by going into Settings, clicking on Windows Update, and manually performing a 'Check for Updates.
Windows 10 users can also manually download and install the KB5031445 preview update from the Microsoft Update Catalog.
Microsoft has not added any new features in this release, and the update acts as a bug for Windows 10, resolving nine issues.
Windows 10 KB5031356 update released with 25 improvements.
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