Windows 10: Dual Boot Option Missing

It was there - options for booting into Win7 or Technical Preview. The 'time to display....' is set at 30 seconds but only Win7 is showing. Any thoughts appreciated - regards.

:)

 

Dual boot option is missing after upgrading to Windows 10

When I turn ON my computer, I only have Windows 10 on it.. I lost the option to boot to my Linux..

This issue just happen right after Windows 10 update...

I've done this already but nothing happen:

Work around 1:

Press Windows key + X

Click Command Prompt (Admin)

At the command prompt, enter the following command:

bcdedit /set {bootmgr} displaybootmenu yes

Hit Enter on your keyboard

Type: Exit

Restart and you should be offered a boot menu to choose which version of Windows you want to boot into.

Please help me..

 

Dual boot option is missing after upgrading to Windows 10

Hi,

Thank you for posting your query at Microsoft community.

Press Windows + r and type msconfig> Please check if another OS is listed under boot> Change time out to 30 seconds>restart the computer.

You may also have a look at this
thread and check if it helps.

Please let us know the results.

 

How did you perform the update?? And what happened right before the option to go into the TP diapered??

 

Originally Win10 was/is installed on a separate partition on the HD. The partition was named Drive X and I can view all the files for the install on that partition via file manager when in Win7. Bootmgr on Drive C (which also contains the Win7 system) was last modified on the 4th November probably by or I assume by the Win10 installation. I'm wondering if any of the Win7 updates since then has removed the option to boot to Win10.

 

Okay - all sorted. Reporting back in case anyone else has the same problem. Used EasyBCD and added the entry Win10 and the drive location. Hey presto - suddenly started working again.