Forum Discussion
itls
Jul 01, 2026Copper Contributor
New Outlook Not Working if on Windows Insider
New Outlook not working after the Friday 6/26/26 Update. Multiple Ui control failures: Can open settings at first. Then would not open after. "X" to close not working New email not working File ...
Jamony
Jul 02, 2026MCT
Hi, if this started right after an Insider build, I would treat it as a possible build regression. Test Outlook on the web first to confirm the mailbox is fine, then reset or repair the new Outlook app from Settings > Apps. If the UI controls still fail, capture the build number and Outlook version and file it through Feedback Hub. As a workaround, leaving the Insider build or switching temporarily to Outlook on the web may be the fastest path.