WD Elements working fine but not recognized in another computer

WD External Drives WD Portable Drives
1

I just bought a 1 TB external hard drive yesterday. I plugged it into my sister’s laptop to copy files and it worked.

This morning, I was going to ask my friend for files but when he plugged it into his computer, it wasn’t recognized/wasn’t being read. I copied files from him before using a 500gb external hard drive and no problems there.

I panicked for a bit because I thought my hard drive might not be working anymore. I tried it in my personal laptop and in my work desktop and both recognized it. 

What could be the problem here?

Thanks and I hope someone can enlighten me on this matter!

2

If you have the Elements portable, it might not be receiving enough energy from the PC. Avoid using extension USB cables or USB hubs. 

3

If it’s a desktop sometimes using a USB port on the back works better also.

Joe