Windows 11 Calculator Bug After Latest Update

First reported on r/Windows11 on June 24, 2026.

Some Windows 11 users are reporting a bug in the calculator app after the latest update. This can be frustrating and cause delays in performing calculations.

What it looks like

• Calculator bug after Windows update
• Incorrect calculation results

How to fix it

1. Restart the calculator app.
2. Restart the computer.
3. Check the calculator settings and make sure the app is updated to the latest version.
4. Contact Microsoft support to report the issue and request a fix.

Affected products

• Windows 11

Sources

• Win 11 Calculator App Showing Different Results — reddit:r/Windows11

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Search terms covered: windows 11 calculator bug, incorrect calculation results after windows update