Saturday, September 14, 2013

Win8- Different ways to enable safe mode and other advanced boot options

Windows 8 introduced a completely new boot manager/boot loader. Another new thing that was introduced in Windows 8 is the ability to Refresh/Recover your PC to the original state or to the state that you defined.
This new design has disabled the old style advance boot options, like safe mode and Last Good known configurations.

So, I like to enable advanced boot option in Windows 8. How? That's easy :)

Method 1: UI Way - but only for one time
Click “Restart” while holding down the left Shift key
Choose “Troubleshoot”
In the Advanced Options window, click “Startup Settings”

The boot menu shown select safe mode

press [Windows]+R to bring up the Run dialog box, type msconfig and click OK

Method #3 (Enable all advance boot option -F8 style permanently)

Enter this command:  bcdedit /set {default} bootmenupolicy legacy

If you would like to disable the F8 key and go back to the original Windows 8 setting you can open an elevated command prompt and enter the following command: bcdedit /set {default} bootmenupolicy standard

The following command will enable the BLUE Advanced Boot Options screen (NOT the Win7, black and white screen) to be shown at every boot:
BCDEdit /SET "{bootmgr}" displaybootmenu yes
bcdedit /set {globalsettings} advancedoptions true

To disable this/restore defaults, run one of the following commands:

bcdedit /set {globalsettings} advancedoptions false
bcdedit /deletevalue {globalsettings} advancedoptions.

LKG is not visible in advance option? Do this:
Enable Last Known Good Configuration:
1. Enable the LKG feature:
under the key HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Configuration Manager\LastKnownGood create a DWORD value "Enabled" and set it to 1

2. Configure how many copies of ControlSet can be created, 2 is enough.

under the key HKLM\CurrentControlSet\Control\Session Manager\Configuration Manager\ create a DWORD value "BackupCount" and set it to 2.

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