Is it possible to run UE4 from an external hard drive?

I want to run UE4 on my school computer, but it is not installed on there, and I cannot install it on there. Is there any way to install UE4 on an external hard drive, and run everything solely from the external hard drive? Even if it isnt the most practical way.

i have 2 HDs in my pc, i have a “custom version” of the unreal engine in my 2nd disk, i don’t see difference between using a external disk and a secondary internal HD, so, i suppose yes, but probably you will need to test.

I have some many Unreal engine instances installed on my PC through Various Drives its not even funny, I believe so!