Seagate 1TB Expansion Drive is not being recognized on my laptop

[furstyear]

My Seagate Expansion drive is not being recognized on my laptop or any other computer that I have tried to put it on. It worked for a while

It is fairly new and I have about 500gb on it so far and I don't want to lose any of my data because most of it is my university files.

I don't know why this is happening and I also can't even change the drive letter, I really don't know much about computers but this forum seems to help people, hope someone can help me Please.
Thank you.

 

[jumanji]

Hi furstyear, Welcome to SevenFoeums.( I missed it. )

Please go through this troubleshooter and check whether it helps. Seagate Technology

 

[furstyear]

My expansion drive is still not being recognized and a few of my friends said that this happens with a lot of seagate drives and this is really starting to make me mad because I paid $170 for it and only used it once.

I am a student so I need everything that is on it. Please someone help!!! I'm not really good with computers either so I'm extra frustrated!

 

[karlsnooks]

furstyear,
Please follow the advise given by jumanji and give a complete report of the results.
thanks,
karl