For other reasons, I reformatted Windows 8 including its system reserved disk but the Windows 7 remains in D untouched. When Windows 8 was completed installing, I used EasyBCD instead of Windows 7 installation disc to boot the D. It was very easy to use the app for the second time and also I can edit the entries whatever name I want to appear in boot menu. It's modern boot menu now with two OS.
Anyway, I did not try to change back its default boot menu in EasyBCD as quoted your reply. I wish I had time to try it.
I'm wondering if I can make a copy/paste of Windows 7/8 in a partition without using any apps, then just use the EasyBCD to boot. This curiosity came into my mind since I had an error when creating image using the app in my system. Maybe I'm going to try it in the future.
The performance has performed good as well as programs running in my system.
My Computer
At a glance
Windows 7 guest, Debian hostAMD FX-6100DDR3/16384 MBytes/2000.6MHzAMD Radeon HD 5500 Series
Computer type
PC/Desktop
Computer Manufacturer/Model Number
MSI
OS
Windows 7 guest, Debian host
CPU
AMD FX-6100
Motherboard
880GMS-E41(FX)(MS-7641)
Memory
DDR3/16384 MBytes/2000.6MHz
Graphics Card(s)
AMD Radeon HD 5500 Series
Sound Card
Built-in
Monitor(s) Displays
Samsung SyncMaster S23B300
Screen Resolution
1920x1080
Hard Drives
ST1000DM003-9YN162 ATA Device
WDC WD5000AAKX-00ERMAQ ATA Device