Insert SSD into MacBook Pro mid2011

Any SSD with a form factor of a SATA 2.5" diam drive will be compatible.

The best way is to install the new SSD in an enclosure and connect it to your MBP via USB.

Open Disk Utility>Erase and format the SSD to Mac OS Extended (Journaled).

Then open Disk Utility>Restore and choose the INTERNAL HDD as the Source and the SSD as the DESTINATION.

Click on the restore button and wait for the transfer of data to complete.

When finished, boot the MBP via Startup Manager:

http://support.apple.com/en-us/HT1310

Select the SDD. If it boots the MBP, make the physical swap.

(I assume that you have Yosemite installed in your MBP)

Ciao.

You only need to install the SSD in the computer. Computers that can be upgraded to use OS X Internet Recovery.

Install OS X Using Internet Recovery

Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.

Boot to the Internet Recovery HD:

Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.

Partition and Format the hard drive:

1. Select Disk Utility from the main menu and click on the Continue button.
2. After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.

Reinstall OS X: Select Reinstall OS X and click on the Install button. Be sure to select the correct drive to use if you have more than one.

Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.

This should restore the version of OS X originally pre-installed on the computer.

Are you aware that you can buy an adapter that would enable you to put the HDD in place of the optical drive and provided additional storage. Check out the DataDoubler at OWC. They also sell the best SSDs for Macs. Tested and guaranteed. They also have video installation tutorials.