4.25.1 very slow to launch

Development Platform & Builds
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1

Hello, a few weeks ago I have installed 4.25.1 as my first ever unreal engine install. It worked fine, launched within 10 seconds and I had a few projects set up.
I have left it untouched for a few weeks and I’ve tried to come back. When you click the project to open it, it will say launching, then nothing happens. No splash screen, no loading icon, no process in the task manager. After about 5 minutes it opens up the project without any issue and I can continue to work on it like normal.
Any idea what could be causing this? I have it installed on an SSD (not main windows SSD, but another SSD).
I didnt upgrade the project to a new UE version, its still the same one as it was when I created it.
Launching just the editor on its own has the same problem.
I have no antivirus except the windows defender and it doesnt seem like it would interfere as nothing has changed since a few weeks.
I have no plugins on the UE version. There are no crash reports or anything else to indicate that its crashing.

This is such a mystery to me. I think the only way now is to try to re-install UE4 which is such a letdown.

2

Okay so I solved it. I have 5 hard drives (mostly for hard backups) and 3 SSDs on my computer and one of the hard drives was malfunctioning. It seems that every time I wanted to launch a project the Unreal engine system would seek to discover all the hard drives on my pc (maybe several times) and since the faulty hard drive literally stops the seeking process it was basically just a lot of interrupts and stops that prevented UE4 from launching.
After removing the faulty drive it as launching in seconds without any issue.
Just to be clear. The project was not on the faulty drive.