How do I get around a 4-503 error in the launchpad?
If you are getting this error, you will need to remove the cookies from your launchpad.
They are located in one of these locations:
LaunchPad.libs/Cache directory
LaunchPad.libs\LaunchPad.Cache\Cookies:
Delete these 2 files:
- Cookies
- Cookies-journal
Once that is done, you will need to log in with your user name and password.
If you need help with those, you can use this article.