Rolling classic Outlook back to version 2405 seems to fix the issue, but it comes with a not-insignificant tradeoff. Updates ...

There's a bug in classic Outlook that causes CPU spikes while typing. Here's a workaround you can use until it's fixed.

Microsoft says it will soon fix a known issue causing CPU spikes when typing messages in recent versions of its classic ...

Learn how to use the Outlook Calendar Check troubleshooter to fix Calendar issues in Windows 11/10 PC using this step-by-step ...