The new OS X 10.11 a.k.a El Capitan will be unveiled today. So, this gives you plenty of time to smooth the way for this upgrade.
Make sure that before you go ahead and start with the preparations, verify to see if your Mac is fit for El Capitan. In other words, check to see if it is running the OS X 10.9, Mavericks or OS X 10.10 Yosemite. Even if you have older OS X versions (such as Snow Leopard 10.6) you can still upgrade to El Capitan.
- Make “room” for El Capitan: When you download the upgrade, be assured to have at least 10GB of free space.
- Apps must be upgraded: We also recommend you to upgrade all of current applications (vendors and Mac ones alike). But, here is what you need to remember though: paid upgrades might be demanded for certain apps, the ones you have forsaken will not get the upgrades and also keep in mind that apps that are on the same wavelength with El Capitan might not have been released by developers just yet.
- Do not forget to save your data: If you have important information stored on your Mac, do not perform any upgrade before you back everything up.
- Check the system disk: Each time you perform such a major upgrade, your storage space will be the one to suffer. So, head on to Applications, then Utilities and click on Disk Utility Pick the startup partition and then hit the Verify Disk knob. If there are any issues reveled, fix them and then move on to the upgrade.
- Encryption must be disabled: If your Mac has some sort of encryption software, this must be deactivating before you perform the upgrade if not, you will be faced with an unpleasant situation to say the least.