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Microsoft patches record 198 Windows bugs in June update - and 3 are zero days

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Lance Whitney/ZDNET

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ZDNET's key takeaways

Microsoft's June update patches a record 198 security flaws.

Some 32 are rated critical, while three are zero-day flaws.

The update also adds several helpful new features to Windows 11.

Microsoft's monthly Patch Tuesday updates typically fix a number of security bugs, which is why Windows users should almost always install them. But this month boasts a new record with 198 vulnerabilities being patched, the largest in recent history. And with many of the flaws rated critical and three already publicly disclosed, you'll definitely want to grab this one.

Also: My 5-step security checklist for every new Windows PC

As usual, this month's updates are described in three separate KB articles -- KB5094126 for Windows 11 24H2 and 25H2, KB5093998 for Windows 11 23H2, and KB5094127 for Windows 10. Since these are mandatory updates, they will automatically download and install. But you should still double-check, especially since you have to reboot your PC for them to take effect.

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