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Windows 7: Win 7 + win 8 dualboot problem

27 Nov 2012   #1

Windows 7 Ultimate x64 retail
Win 7 + win 8 dualboot problem

I have Windows 7 on one SSD, and Windows 8 at another SSD. They are both installed seperately of eachother, and as now, I'm switching between then with the Boot-menu in BIOS.

But I want a boot menu, where I can select which OS I will start, so I got the EasyBCD tool, made the settings (I think) and saved it. It is made in the Windows 7 installation.
Windows 7 starts fine, but when selecting Windows 8 I get an error about the file <system>/system32/winload.exe has not a legitime certificat.
If I select Windows 8 from bootmenu in BIOS, it boots just fine. I have NOT installed classic shell or other OS-changing software.

What do I do wrong?

My System SpecsSystem Spec
27 Nov 2012   #2

Microsoft Community Contributor Award Recipient


Try using
EasyBCD - NeoSmart Technologies
in Windows 8.
My System SpecsSystem Spec
27 Nov 2012   #3

Windows 7 Ultimate x64 retail

but it IS this program I am using!

I have not changed any advanced settings, just added an entry to windows 8 pro, selected the drive it is installed on, and then clicked "save settings".
What else shall I do?
My System SpecsSystem Spec

28 Nov 2012   #4
Microsoft MVP


Theog is suggesting you install Easy in Win8 instead of Win7, to add the other OS. It may work better from the newer OS.
My System SpecsSystem Spec
29 Nov 2012   #5

Windows 7 Ultimate x64 retail

Found the solution. Copied "bootmgr" from Windows 8 to Windows 7 installation, and bingo. It works.
My System SpecsSystem Spec

 Win 7 + win 8 dualboot problem

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