Solved Win 7 + win 8 dualboot problem

Burgurne

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Greetings.
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 Computer My Computer

At a glance

Windows 7 Ultimate x64 retailCore i5 3570K @ 4,4Ghz16Gbyte Corsair C9 1866mhzMSI Lightning GTX 770
Computer type
PC/Desktop
Computer Manufacturer/Model Number
homebrewed
OS
Windows 7 Ultimate x64 retail
CPU
Core i5 3570K @ 4,4Ghz
Motherboard
MSI Z77A GD65
Memory
16Gbyte Corsair C9 1866mhz
Graphics Card(s)
MSI Lightning GTX 770
Sound Card
Auzentech
Monitor(s) Displays
BenQ 24"
Screen Resolution
1920x1200
Hard Drives
Samsung 840 EVO SSD, Samsung SSD 830 256Gbyte, Seagate 3Tbyte HDD, WD 4 Tbyte HDD.
PSU
Zahlmann 850HP
Case
Corsair Carbide 500R
Keyboard
G15 logitech
Mouse
Logitech Laser MX1000
Internet Speed
60/60
Antivirus
Bitdefender
Browser
Chrome
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 Computer My Computer

At a glance

Windows 7 Ultimate x64 retailCore i5 3570K @ 4,4Ghz16Gbyte Corsair C9 1866mhzMSI Lightning GTX 770
Computer type
PC/Desktop
Computer Manufacturer/Model Number
homebrewed
OS
Windows 7 Ultimate x64 retail
CPU
Core i5 3570K @ 4,4Ghz
Motherboard
MSI Z77A GD65
Memory
16Gbyte Corsair C9 1866mhz
Graphics Card(s)
MSI Lightning GTX 770
Sound Card
Auzentech
Monitor(s) Displays
BenQ 24"
Screen Resolution
1920x1200
Hard Drives
Samsung 840 EVO SSD, Samsung SSD 830 256Gbyte, Seagate 3Tbyte HDD, WD 4 Tbyte HDD.
PSU
Zahlmann 850HP
Case
Corsair Carbide 500R
Keyboard
G15 logitech
Mouse
Logitech Laser MX1000
Internet Speed
60/60
Antivirus
Bitdefender
Browser
Chrome
Theog is suggesting you install Easy in Win8 instead of Win7, to add the other OS. It may work better from the newer OS.
 
Found the solution. Copied "bootmgr" from Windows 8 to Windows 7 installation, and bingo. It works.
 

My Computer My Computer

At a glance

Windows 7 Ultimate x64 retailCore i5 3570K @ 4,4Ghz16Gbyte Corsair C9 1866mhzMSI Lightning GTX 770
Computer type
PC/Desktop
Computer Manufacturer/Model Number
homebrewed
OS
Windows 7 Ultimate x64 retail
CPU
Core i5 3570K @ 4,4Ghz
Motherboard
MSI Z77A GD65
Memory
16Gbyte Corsair C9 1866mhz
Graphics Card(s)
MSI Lightning GTX 770
Sound Card
Auzentech
Monitor(s) Displays
BenQ 24"
Screen Resolution
1920x1200
Hard Drives
Samsung 840 EVO SSD, Samsung SSD 830 256Gbyte, Seagate 3Tbyte HDD, WD 4 Tbyte HDD.
PSU
Zahlmann 850HP
Case
Corsair Carbide 500R
Keyboard
G15 logitech
Mouse
Logitech Laser MX1000
Internet Speed
60/60
Antivirus
Bitdefender
Browser
Chrome
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