

If you have other non- Mac programs not listed here, check with the authors about compatibility before attempting any OS upgrade. The above list is just a few of many well used programs that have been identified as having issues. Will NOT work with El Capitan or Sierra Other Software Quicken Essentials for Macĭoes not work with Sierra Yahoo! Messenger To enjoy all new features of macOS Sierra and full compatibility please upgrade to Parallels Desktop 12 for Mac. While Parallels Desktop 10 will run your virtual machines on macOS Sierra, you will not be able to access your Windows files with Mac applications and a new installation of Parallels Desktop 10 will not work on macOS Sierra.
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Parallels Desktop 9 for Mac and earlier versions do not support macOS Sierra. If you misplace it you will need to buy it all over again or better still install Office 365. Make sure you have this at hand before attempting an upgrade. Will NOT work with Yosemite, El Capitan or Sierra Microsoft Office 2011 or EarlierĪfter cloning early versions of Office to a new HDD or SSD, sometimes the office Activation key is sometimes requested.

However, you may not be able to upgrade the OS if you are running any of the following non-apple software products. Increasing speed and performance by up to 400% is possible on older Macs by replacing the HDD with an SSD or a new HDD. Upgrading Mac OS (to High Sierra or Mojave) may not be possible if you are still running older versions of some non-apple software
