Windows 10: option to Boot into Windows 7 or 10

I installed Windows 10 Pro (x86) on my system as Dual Boot with Windows 7 which I already had. I installed by burning the ISO on a USB drive using Rufus. Windows 10 was installed in Partition I: on my second HDD. It was a fresh partition that was formatted as NTFS and had 29.2 GB.
The installation worked just fine, and I was able to use Windows 10. But when I restarted (after removing the USB drive) it took me straight to Windows 10 without showing the option to Boot into Windows 7 or 10. Windows 7 was still there in the HDD partition. I used msconfig in run and only found Windows 10 under Boot tab.
Then I tried using the USB again for repair, and there I found the option to continue with Windows 7, so with the hope of getting back Windows 7 I booted into Windows 7. Everything worked from that point but I was no longer able to boot into Windows 10. Nothing I tried worked, and there was still no Boot menu. Using msconfig again on Win7 showed only Windows 7. So later I deleted the Volume containing W10 and formatted it as new.
I want to install it again so now I want solutions on what to do to avoid this problem. Please help ??

:)

 

Windows XP boot option gone after Windows 10 upgrade.

I had Windows 7 and Windows XP installed on two different partitions on 1 hard drive. On boot I got the option if I want Windows XP or 7 to boot. After I upgraded my Windows 7 with Windows 10 those options are gone. I only get the option of booting Windows
10 or and earlier windows version. Every time I chose the earlier windows version option the computer just restarts. How do I restore my Windows XP boot option?

 

Unable to boot into Windows 10, Unable to repair or reset

Use whichever method works to
Access Advanced Startup Options
in Windows 8 or 10. If none of the other methods work it may be necessary to
createa
Recovery driveor
 Create
Windows 10 Installation Mediaon another PC to boot using the
BIOS Boot Menu Key,choose
the boot device as a UEFI device if offered, then on second screen choose Repair Your Computer




In the Advanced Startup options try (in this order) automated Startup Repair, System restore, then if necessary from Startup Settings try to get into Safe Mode with Networking,
or lastly Safe Mode.






From Safe Mode w/Networking work through the
Windows 10 Install Integrity Checklist.

If Safe Mode doesn’twork or
help stabilize things
then return to
Advanced
Startup Options in Windows 8 or 10. Next tryCommand
Prompt  torun Checklist repair commands including
sfc/scannow, to see if
it will repair and start, or do a Reset Windows 10.



Better yet do the vastly superior
Clean Install Windows 10
following the steps in the link to delete all partitions down to Unallocated Space to get it cleanest.  After install reactivate with your Product Key, automatically from embedded Product Key
if a factory install,  or
if free Upgrade has already activated.
Activation in Windows 10 - Windows
Help.



At any time you
can
Rescue
Files when Windows Won’t Start, use a Linux disk, or
Paragon
Rescue Kit Free EditionFile Recovery Wizard to copy files to USB flash stick or an external or another hard drive. 



If these fail you can try to run Factory Recovery from
it’shot key at boot; find yours by googling the “PC make/model + Run Factory Recovery.”  
Factory Recovery methods




Feel free to ask back any questions and keep us posted on how it goes. 

 

Have you tried with a multi boot program like easy BCD from neosmart i have used it a lot on multi boot systems its free!

 

Have you ever completed an upgrade to Windows 10 on this computer? If not, a clean install will not activate. You must upgrade and activate first or the Win 10 will not active.

The only way around this is to buy a retail version for $109 to $199.

 

Could you please post instructions on doing this ? I've heard of EasyBCD and even installed it after the problem but didn't know how to use it.

 

OK, during the process I skipped activation because I was using Windows 7 keys and it didn't work (seems like I need to upgrade it first).

But shouldn't it at least let me access the other OS without activation, or does activation have something to do with the Dual Boot ?

 

You don't need to use easy BCD. Go to disk management and note the drive letter of Windows 7. Open the Admin command prompt then type:
bcdboot X:\Windows
Where X is the drive letter of Windows 7.

 

Yes, accessing via Dual boot is not affected by activation status.

As to how, see here: EasyBCD - Newer versions of Windows

 

Should I do this from Windows 10 (after installation) or from Windows 7 (after using the USB to access Win7) ??

 

Thank You. But should I run EasyBCD on Windows after installing it, or on Windows 7 after getting access to it using the USB ? Also shouldn't I change the Type on the Add Entry section.

 

hi I thought that you had it activated but couldn't choose between either OS you had if that is the case then Easy Bcd will do the job for instructions as mentioned before best bet is look on the neosmart forum I guess. im not an expert in using it and I just go there myself if I need anything. in the past for multi booting. I have also today come across this easyrecovery essentials for win10 its also free right now and will work with any version of windows I believe, so I guess it may help with any installs and problems also from neosmart. btw I have no connection with them ive only just joined here and looked on neosmart again recently in anticipation of trying WIN10 hope something in this helps

 

Either way will work but if you do it from 7 then you'll get a GUI interface. If you do from 10 then you'll get the plain old text interface.

 

YOU CAN ONLY HAVE 1 OS activated on a single PC, 1 key = one OS
Your going to have to choose 7 or 10.

Roy

 

This is simply untrue. I currently have Windows 7 Ultimate SP1, two partitions of Windows 8.1 Pro S14 and two partitions of Windows 10 Pro and each and every one are activated.