Unreal Engine 4 won't install

I’ve completely downloaded the program unfortunately it won’t install and gives me the error code IS-PQE1223. The message states that prerequisites have failed to install. Is there another way to install or have I missed something?

Reasons for this error might vary for different people, but here a list of working solutions, try until it works :wink:


Hey LittleMeow,

We’ve recently modified our support process for Launcher issues, so you can find the answer to your question on the page linked below. The information there should resolve the issue; however, if it does not, please use the Email Us button on the side of the linked page to get in contact with one of our support staff.

Have a great day