First off, I don't think the update did that. Verify your keyboard and mouse have fully charged batteries. If your data isn't backed up, get Prosoft Data Rescue from:
http://www.prosofteng.com/
and an external hard disk, and attempt to recover your data first.
Use Option key booting (you may need a wired Apple keyboard to do that):
http://docs.info.apple.com/article.html?artnum=106178
As for the gray screen, see this article:
http://docs.info.apple.com/article.html?artnum=106464
Twisted loop mac os. Welcome to Part 1 of my Tutorial on how to do a dual boot installation of Kali Linux on your MacBook Pro running Mac OS Sierra. In my tutorial I'm using a 13-inch MacBook Pro with TouchBar (Late 2016), so depending on your model and Mac OS version, things might be different for you. Pen beta mac os. OneDrive is a free online service from Microsoft that allows you to store files from your computer hard drive in cloud-based storage. If you need to uninstall OneDrive from your Mac, follow this complete removal guide. We will provide a step-by-step guide on how to correctly and completely remove OneDrive from the macOS system.
D.u.i. Drive Mac Os 11
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