Unreal Engine Source Code Build (5.6) slow after system reboot with internet connection

Hey Guys,

so I want to create this post, as I could not find a solution here in the forum.

So, what i have experienced was when building UE 5.6 from the source code on a different partition,
UnrealEditor (not the project) was taking ages to boot (approx 9-10 mins), it usually took arount 40-60 seconds… After each system reboot, it was a pain with the first launch of UE.

Anyways, last couple days, i could not figure out why UE was taking so long to switch from a Background Process to Process and even then it was taking long.

So, if you are experiencing long loading times and ON top if it is significantly faster when u turn OFF your internet, than you probably have the following Windows 11 settings issue which is causing it.

I am also not sure if Bitlocker can cause such problems as well, but I realized that on my clean OS stupid WIN11 activated bitlocker on all partitions. So maybe, check that as well

have fun

bests,
k0ki_dev