Microsoft has released an out-of-band update to address a known issue causing some Windows 11 systems to enter recovery and fail to start after installing the KB5058405 May 2025 security update.

Updates are essential to protect your Windows PC — Microsoft has just confirmed that some Windows 11 users have a big problem. Luckily, there’s a very simple fix.

Windows 11 is getting a very useful troubleshooting feature that can help you fix PCs that cannot boot, and you can already try it out.