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Microsoft
First published on TechNet on May 23, 2012
Hey all, Ned here. The Building Windows 8 blog recently posted a new article from Chris Clark that you might have passed over due to the title, which sounds like another article on boot performance:
Designing for PCs that boot faster than ever before

Don’t skip it! A more descriptive title would have been “ The F8 and F2 boot menus are gone on Windows 8 and you need to read this post to do your job, IT Pro.

Windows 8 is designed to run on hardware that boots too fast for a human to react through a keyboard, requiring new methods to get to a boot menu. Note down what the article describes so that when you need to troubleshoot a slow logon or slow boot , you can get into Safe Mode and other diagnostic states ( PC Settings , shift+restart , shutdown.exe /o /r , msconfig.exe ). All of these apply to Windows 8 Developer Preview and Windows Server “8” Beta, which you can get your hot little hands on right now.

It is also important to note – and not mentioned in the article – that on Windows Server 2012 only, you can still use F8 . The new boot menu system eventually gets you back to the familiar menu with your favorite DSRM option too, so don’t feel like we’re making you relearn everything:

Also not mentioned but preemptively answered now: while shutdown /o was updated to support the new boot menus, the restart-computer Windows PowerShell cmdlet was not.

- Ned “Doc Martens” Pyle