Method 5: Erase Your Mac Disk and Reinstall macOS.Method 4: Try Reinstalling or Updating Your macOS Later.Method 2: Check Your Date and Time on Mac.Method 1: Check Your Network Connection.Why the Recovery Server Could Not Be Contacted on Your Mac?.Do you know the reason for this issue and how to fix it? In this post, MiniTool Software will show you the information you want to know. On their website, so check that our as you explore the new features.When you want to reinstall macOS on your Mac computer, you may encounter different kinds of issues like the recovery server could not be contacted. If you installed it on a second partition, just hold the “Option” key as your Mac boots to choose which operating system to launch. Eventually your Mac will restart again, before finally allowing you to try out your new operating system. You will not be able to use your Mac during this part of the installer. When that done, your Mac will reboot (after asking you, of course) before getting to the second phase of the process. You can continue to use your Mac during this initial phase, though it may be slow. You will be asked whether you want to upgrade the filesystem. (If you’re dual booting, this is where you’d choose your newly-created second partition.) The installation is going to take a while, and will involve shutting down your computer, so save anything you’re working on before hitting “Continue.” When you do, you’ll be asked which partition you want to put the beta on.

This might take a while: the servers have been fairly busy since the public beta launched. In fact, the App Store will open for you.Ĭlick “Download,” then wait. Go through the steps and your Mac will be ready to download the macOS High Sierra Public Beta from the Mac App Store. Mount the DMG file, then launch the PKG installer found inside. Scroll down to the “Enroll your Mac” section, then click the blue button to download the macOS Public Beta Access Utility. Sign in with your iCloud account to enroll for the beta, then head to the We’ll try to update this article when that changes.Īnd click Get Started. While installing the beta, use this partition instead of the default.Īs of this writing, we can’t find a way to get High Sierra working properly in a virtual machine, so that option is out for now. , with at least 20GB of space (more if you want to try a bunch of applications.) Label this partition something obvious, like “High Sierra.” If you don’t have the luxury of a second Mac (after all, money doesn’t grow on trees), consider dual booting instead. I installed on an old MacBook Pro I keep around the house for exactly these sorts of things. The best idea is probably to put High Sierra on a second Mac-one you don’t use for day-to-day work. High Sierra is not ready for production machines at this point: if you install the public beta you can expect bugs and crashes.ĭo not try to use the High Sierra Beta as your primary operating system.

Mac os sierra reinstall