macOS Sequoia 15.5 Beta 4 may not have landed with notable features that would appeal to your taste. However, the lack of outward-facing features hasn’t dampened the excitement as the 15.5 is focused on under-the-hood bug fixes and performance enhancements. A handful of users are encountering issues where the update fails to install, gets stuck during the process, or throws unexpected errors. If you’re facing similar problems, here are five effective ways to fix the macOS Sequoia 15.5 Beta 4 not installing problem. Read on…
1. Check Mac Compatibility and Available Storage
Before moving ahead, make sure to confirm that your Mac supports macOS Sequoia. Apple typically drops support for older models in beta updates. Additionally, be sure you have at least 25–30 GB of free storage. Beta installations often require additional temporary space.
- On your Mac, head over to Apple menu > System Settings > General > Storage and free up space by deleting large files, clearing caches, or moving files to iCloud or an external drive.
2. Restart and Try Again
If the problem still persists, why not restart your Mac? A simple reboot can resolve temporary macOS glitches or stuck installation attempts.
- Hit the Apple menu at the top left > Restart.
- After rebooting, go to System Settings > General > Software Update and try re-downloading the macOS Sequoia 15.5 Beta 4.
- If you’re enrolled in the developer beta, ensure the beta profile is still active.
3. Delete and Reinstall the Beta Profile
Corrupted or outdated macOS Sequoia 15 beta profiles can interfere with software updates. Therefore, I’d suggest you clean up the corrupted beta profiles.
- On your macOS device, dive into the System Settings app > General > Software Update, click the small “i” next to Beta Updates, and select macOS Sequoia Developer Beta or Public Beta again.
- If you don’t see the option, sign in to your Apple ID and make sure you’re enrolled in the Apple Beta Software Program or Apple Developer Program.
4. Delete the Update Files and Try Again
If the update download is stuck or throws errors, you may be dealing with a corrupted file.
- Open Finder > Go > Go to Folder, type
/Library/Updates, and delete everything inside the folder. - Then go back to Software Update and reinitiate the beta download.
5. Reset Network Settings
If your Mac isn’t connecting properly to Apple’s update servers, network settings might be the culprit.
- Launch the System Settings app on your macOS device > Network, select your current network, click Details, and choose Forget This Network.
- Then reconnect by entering your Wi-Fi password again. You can also try removing any custom DNS settings under DNS and using the default automatic configuration.
If none of these steps work, you may want to wait for the next beta release or install the update using a bootable installer. Hopefully, one of these fixes helps get you back on track!
