OS X wants to reinstall
Hi everyone,
Here's the context : I have been installing Yosemite on a memory stick to be able to boot my Macbook Pro whose hard drive has just died. I have done this on an iMac by downloading the installer, simply run it and made it install on the memory stick.
Problem? When I reboot the iMac (memory stick unplugged) he acts like I just also reinstalled the OS on the hard drive. I know it has not been formatted thanks to a Bootcamp partition by which I can see that everything is still in place. I don't dare to proceed to the "installation" because I'm afraid to lose all the data on it...
Any idea of what to do to make it run the way it was before? I would really appreciate some help as it is not my computer....
Thank you SO much in advance, and sorry if there are some mistakes, I'm not a native English speaker...