I have had that problem with dual booting after installing w10..it's there it is just not visible. You have to go into system/advanced/startup and recovery and sey which you want to boot to and then boot, it will work. I don't know why this happening but it is and only on certain machines. You can also use bcdedit to set the boot menu to legacy and then it will show up too but i find that menu ugly after all this time.
I have a Dell E6500 with XP, Vista, W7 and W8.1Pro. When I upgraded the W7 partition to W10, I fully expected W10 to trash my boot manager and I wasn't disappointed. EasyBCD2.2 brought my quad boot machine back to life. Love it - one of my "must have" utilities.
Just tested with the 8 command to force old Legacy Boot menu instead of the new Default one. Still works in Win 10. Code: bcdedit /set {default} bootmenupolicy legacy Created a Safe Boot Entry to have a Boot menu shown and: Spoiler
try this in elevated command prompt. "bcdedit /set {bootmgr} displaybootmenu yes" but the issue with me is that on COLD BOOT the blue gui OS selection menu is showing up , but when i simply restart the screen turns black at GUI and i can only see mouse pointer which i have to move and then windows 10 loads as default.... any solution to get blue color gui menu back ?
Please use Ctrl + R then type "LPKSetup.exe", After "enter" press "Install display languages", then select the desired language folder, then the lp.cab file inside it. THen agree to the license agreement, then you will be installing it
Again: Advanced Tokens Manager is out-dated!!! On Win 8.1 it is only able to backup phone activation, NO ONLINE ONE! Win 10 Free Upgrade is ONLINE ONLY! Additionally it introduces new tokens (ATM doesn't know those). QUESTION: WHERE'S THE POINT HERE?