✅ AltServer 1.7.3 is now available for all Windows users and fixes issues with error codes -22410 and 1100!

You should be able to refresh AltStore Classic and other apps normally after updating, but please let us know if you're still running into issues.

If you are still having issues after updating, here are a few troubleshooting tips:

• Log in to iTunes
• Log out then back in to iTunes
• Leave iTunes running while AltServer is running
• Delete the folder C:\ProgramData\Apple Computer\iTunes\adi
• Reinstall AltStore with AltServer

@altstore do you happen to have the old installers somewhere? I need the version 1.7.2.0 installer in order to update to 1.7.3