Try to start up from macOS Recovery
Blankos Block Party is a new multiplayer universe owned and built by you. Open Beta is out now! Shut down your Mac. Locate the following keys on the keyboard: Command (⌘), Option, P, and R. Turn on your Mac. Press and hold the Command-Option-P-R keys immediately after you hear the startup sound. Hold these keys until the computer restarts and you hear the. Hi SimonKing7, I go through the post carefully, it seems that you got blank sign in window when trying to set up OneDrive on your Mac. The issue could be related to OneDrive client on your Mac, here are some suggestion: 1. Reset OneDrive and check the result. The problem with video or flash games not working in browsers like Safari, Firefox or Google Chrome in Mac OS X mainly revolves around a combination of settings and compatibility issues with Adobe Flash Player, the software that enables these web based videos to play. Open Finder and search for Slack (make sure This Mac filter is selected). Highlight all copies of Slack and delete them. In your dock, right click on the Trash icon and select Empty Trash. Get the latest version of Slack, and install it in the Applications folder.
If your Mac seems to be turned on but nothing is appearing on your display, determine whether you're using a Mac with Apple Silicon, then follow the appropriate steps:
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- Press and hold the power button for about 10 seconds.
- You should see the startup options window, which includes a gear icon labelled Options. Select Options, then click Continue.
- If the startup options window doesn't appear, release the power button, then press and hold it again for another 10 seconds. If the issue persists, please contact Apple Support.
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- Press and hold the power button for about 10 seconds.
- Press and release the power button, then immediately press and hold Command (⌘)-R until you see an Apple logo or other image.
- If you still see a blank screen after about 20 seconds, contact Apple Support.
Use Disk Utility to repair your startup disk
If your Mac started up successfully from macOS Recovery, you should see a utilities window that includes Disk Utility. Use Disk Utility to repair your startup disk.
If Disk Utility found no errors, reinstall macOS.
If Disk Utility found errors and repaired them, restart your Mac. If the issue returns after you've restarted your Mac, reinstall macOS.
If you still need help, please contact Apple Support.
You might be able to call Apple and order a set of the original gray system discs. Last time I did this they were $16 each and I believe there are two of them. The retail disc is an earlier version of Snow Leopard (10.6.0) than was shipped with your Mac (10.6.3 or 10.6.4). The retail disc won't work because your Mac won't run an earlier version of the OS than it originally shipped with. So the problem is not with your computer but with the disc you are trying to use. In all likelihood the computer itself is fine.
Alternatively, you might be able to visit an Apple Store and see if they could install Sierra for you since your Mac will run it.
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Good luck!
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Jan 10, 2017 12:32 AM