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# Acer Switch Alpha 12
WARNING: These are directions to configure the machine and boot an experimental, in-development OS on it.
## Powering the Machine On
To power on you must hold the power button (lefthand side, above the Volume rocker) for several seconds, then let go.  You can safely let go when the tiny blue light on the power button itself turns on (yes, this is really hard to see when youre holding the power button), or when the display backlight turns on.  If you hold too long it may end up power right back off again.
## Powering the Machine Off
If you boot into Windows 10 or something hangs or crashes and you need to power things off, Press and Hold the power button until the display shuts off.  To be sure, hold for about 10 seconds total.
## Entering the BIOS
With the machine off, Press and hold Volume Up, then continue to hold while pressing and holding the Power button.  Let go of the Power button when the display backlight turns on.  Alternatively, hold F2 on an attached keyboard while powering the machine on.
## Enabling Zircon Boot
1. Boot the machine and enter the BIOS
2. Select Security from the tabs at the left
3. Tap the “[clean]” gray bar under Supervisor Password Is
4. Enter a supervisor password, enter it again, press OK
5. Select Boot from the tabs at the left
6. Tap the “[Enabled]” gray bar under Secure Boot
   (if theres no gray bar, you have not set a supervisor password, go back and do that now)
7. Select Disabled from the menu
8. The Boot priority order list may be adjusted using the up/down arrows to the right of each item
9. Order the list like so:
- Network Boot-IPV4
- Network Boot-IPV6
- Windows Boot Manager
10. Select the Main tab on the left and set the time and date by pressing “[SetTime]” and “[SetDate]” buttons respectfully. This is necessary for proper network operation.
11. (Optional)  Go back to the Security tab and set the supervisor password back to nothing.
Otherwise youll need to enter the password every time you use the BIOS.
A password is required to modify the secure boot setting, but disabled will persist without one.
12. Select Exit from the tabs at the left
13. Select Exit Saving Changes
14. Continue to [Setup with USB flash drive](
## What if you end up in the Windows 10 Setup?
If you dont enter the BIOS and havent installed another OS, Youll end up on a blue background Hi there screen asking you to select country, language, etc.
1. Press Power and Hold it for about 10 seconds (the screen will turn off after 2-3 seconds).
2. Boot into the BIOS as described above.
## What if you get stuck in Windows 10 Recovery?
Its possible to end up in a situation where the machine *really* wants to help you recover your failed boots into Windows 10 and dumps you into a recovery screen -- blue background, Recovery in the upper left, and some text saying It looks like Windows didnt load correctly”.
1. Select See advanced repair options
2. Select Troubleshoot (screwdriver and wrench icon)
3. Select Advanced options (checkmarks and lines icon)
4. Select UEFI Firmware Settings (integrated circuit and gear icon)
5. When prompted Restart to change UEFI firmware settings”, select Restart
6. The machine should now reboot into the BIOS
7. Check that Windows Boot Manager didnt get moved to the top of the boot order, fix it if it did
## Quirks
It has been observed that USB initialization is racy on a cold boot. So if you're starting from a cold boot and trying to boot to USB, you may find that you boot to disk instead.
- It's useful to use a `cmdline` file to set `zircon.nodename=foo` to know during the boot screen whether you're booting from USB or disk.
- If the Acer is booting from disk and you want to boot from USB, remove and reinsert the USB drive, then reboot with `ctrl-alt-del` (not the power button.)
- You can tell from the bios whether USB has been initialized because it will name the USB device.