How to use a hard drive as an external hard drive?

Hi, I was going to get a new computer but due to unprecedented events I need to wait longer in order to be able to do that. So in the meanwhile, I dont have a place to put my hard drive in and be able to use the files within.

I was wondering if there's a way for me to be able to adjust it, what would I have to do and whether the windows installed in that hard drive cause issues when plugging it in to a computer with windows already installed..?

Thanks a lot in advance :)

btw, I found this and it made me think it could be possible:

Newegg.com - Rosewill RX35-AT-SU BLK Aluminum 3.5" Black USB 2.0 External Enclosure

yes its a sata drive, and thanks a lot, i didnt want to buy it and then realize it doesn't work.

I use a dock with my notebook to access my spare internal drives (it's much cheaper than enclosures when using multiple drives and the drives require less room to store). One can either use a USB 2.0 or e-SATA connection (sadly, my notebook doesn't have an e-SATA port).

I'm using four of the exact Rosewill units you referenced in the OP. They have worked perfectly for three years.
Just be sure and get the "3.5 SATA TO USB 2.0". I made a mistake, didn't look closely, and ordered one "TO USB 3.0".
Couldn't get it to work.

Oh ok. Good points every one and thanks a lot for the replies :)

the swap bays are interesting....