Quote:Microsoft will support Classic Outlook for Windows until 2029, but that doesn't necessarily seem like the app gets priority. The classic version of the mail client has had a bug that users have been complaining about for nearly a year.

Microsoft has finally acknowledged the problem, outlining it as a high CPU usage issue. The bug in question causes the CPU to spike up by 30 or 50% when a user types an email in the Classic Outlook app. The company noted that users can observe this behavior if the Task Manager is open.

According to a support page spotted by Beta News, this bug exists in Windows 11 Version 2406 Build 17726.20126 and above. It affects users on all channels, including the Current, Monthly, Enterprise release channels, and even those in the Windows Insider Program. Microsoft released Windows 11 v2406 in June 2024.

While Microsoft stated that the Outlook Team is investigating this issue, it has not provided an explanation for the problem. Users are puzzled at what could be causing the performance issue? This is rather concerning given that CPU usage spikes also increase the power consumption of the computer.

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