KB2267602 is a protection or definition update for Windows Defender designed to fix vulnerabilities and threats in Windows.

Some users reported that they were unable to install KB2267602.

This post fromMiniToolintroduces how to fix the KB2267602 fails to install issue.

click Clean up system files

However, some users report that KB2267602 fails to install.

So if you have installed one on your box, good idea to uninstall it to fix the error.

you’re free to go to Control Panel or tweaks to do that.

So, you’re able to try running the troubleshooter to fix the KB2267602 fails to install.

Step 1: PressWindows + Ito open theSettingsapplication.

Step 2: Go toSystem> clickTroubleshoot.

Step 3: ClickOther troubleshootersto expand all troubleshooters, and then clickRunnext to theWindows Updatesection.

Step 4: Now, this troubleshooter will scan issues associated with the Windows Update components.

If any fixes are identified, clickApply this fixand follow the on-screen instructions to complete the repair.

you’re free to reset the Windows update cache.

Step 1: TypeCommand Promptin theSearchmenu.

Then right-click it to chooseRun as administratorto open it.

Solution 4: Run Disk Cleanup

Almost all versions of Windows have integrated the Disk Cleanup feature.

The Disk Cleanup feature makes it easy to delete unnecessary files on your system and save space.

Thus, this solution is to perform Disk Cleanup.

Then typeDisk Cleanupand opt for first option.

Step 2: choose the drive on which Windows has been installed and clickOKto continue.

Step 3: Click theClean up system filesoption and clickOKto start cleaning.

Step 1: Open your internet tool and go to theMicrosoft Update Catalog.

Step 2: Search for KB4577266 update.

Step 3: Find the correct update based on your operating system version and clickDownload.

you’d be smart to back up your important data withMinitool ShadowMaker Freeto better safeguard your machine.