Considering SSD upgrade for 13" Mid-2012 MacBook Pro My Macbook's HDD is starting to show signs of age and I'm considering replacing it with a Samsung 850 EVO 500GB SSD. I know and am comfortable with the actual hardware replacement, but I heard that the newest Mac; OS El Capitan, has some "feature" to prevent using third party SSDs. Something to do with TRIM if I remember right. I would like to know if that is an actual problem or if I can go ahead and make the purchase.

Thank you very much!

P.S. I'd like to point out that this will be a fresh install.
OS X 10.11, El Capitan, does not include specific code to prevent the use of a third party Solid State Disk (SSD).

I have replaced my MacBook Pro's Hard Disk Drive (HDD) with a Samsung SSD; the MacBook is running OS X 10.11.

With regard to TRIM support on non-Apple installed drives, see Should I enable TRIM with a third party (non-Apple) SSD?