Question How to retrieve data from an external hard drive

[Ramona Joyce]

Hello, how do I re install data onto my mac.....I removed it to an external hard drive.

 

[johnsonma]

Did you create a time machine backup on the external hard drive?

 

[wildwell]

Is your external drive not mounting?

 

[Ijack]

QUOTED SPAM REDACTED - SS

If you are going to reproduce material directly from Wikipedia it would be polite to at least give a credit to the source. Better still, just give a link to the page in question.

I'm not clear from the OP that there is a problem with the disk. We need some more details - how were the files transferred to the external disk and what exactly is the problem in just transferring them back?