Windows and Linux dual systems modify default startup entries, time-outs

Modify the/etc/default/grub, and then Update-grub.

Execute command
sudo gedit/etc/default/grub

The main content is
# If You change this file, run ' Update-grub ' afterwards to update
#/boot/grub/grub.cfg.
# for full documentation of the "options in" This file, see:
# info-f grub-n ' simple configuration '
Grub_default=0
#GRUB_HIDDEN_TIMEOUT =0
Grub_hidden_timeout_quiet=true
grub_timeout=10
Grub_distributor= ' lsb_release-i-s 2>/dev/null | | Echo Debian '
grub_cmdline_linux_default= "Quiet Splash"

Grub_cmdline_linux= ""

Grub_default represents the order of the startup items, starting with the number 0, which in turn represents the following startup items (this is on my computer, different Linux versions and Windows systems may have some differences)
Ubuntu
Advanced options for Ubuntu
Memory Test (memtest86+)
Memory Test (memtest86+, serial console 115200)
Windows 8 (loader) (ON/DEV/SDA1)
Windows Fourth bit (note that the order is from 0), so change the value of Grub_default to 4

GRUB_TIMEOUT=10 represents timeout, default is 10 seconds, set to 1 cancel Countdown

Don't forget to do it at the end.

sudo update-grub
OK, restart the computer, the default boot system will switch to Windows.

If you don't want to use Linux grub instead of switching back to Windows BCD or Metro to boot your system, check out my other article:

http://blog.csdn.net/jackeriss/article/details/47264245

Copyright NOTICE: This article for Bo Master original article, without Bo Master permission not reproduced.

Windows and Linux dual systems modify default startup entries, time-outs