I saw my friend's computer wait for only 5 seconds on the boot menu screen (where you select which OS to boot), while mine delays for 30 seconds. How can I change this?
3 Answers
I suspect that you may be talking about the delay during the "Select an operating system" screen during boot, that defaults to 30 seconds.
To change this:
open the System control panel (shortcut: Windows+Break)
select Advanced System Settings from the left hand menu:

Click the Settings button in the Start-up and Recovery group:

Edit the Time to display list of operating systems to suit:

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System control panel is also available by right-clicking on My computer, then selecting Properties Feb 16, 2014 at 10:59
From an elevated command prompt (not PowerShell):
bcdedit.exe /set {bootmgr} timeout <integer>
Example:
bcdedit.exe /set {bootmgr} timeout 31
The boot time depends on the hardware and the also the softwares that are run on start up.Remove the unnecessary softwares from the startup and it may decrease your computers's boot up time
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1I think you misunderstood his question. He was asking about the "count down timer" delay. Jul 11, 2013 at 1:16