First of all, let me talk about the specific problems I encountered:
I first installed in C drive windows-xp-professional-service-pack-3-key-usb , and then installed in the D drive window-7-ultimate-retail. So with all that is normal, because I had to back up a XP system, so I used a key to restore the C drive to restore, but the problems will come out in the system startup items that only windows-xp-key and a reduction of two key elections items, there is no way to enter the
system, because I did not come into contact with
, directly from the XP to
Windows 7-usb, so it does not start the theory is to understand, so I studied a afternoon only then solved the problem, by the way have learned
windows-xp-keysystem start principle. Solve the problem before us first look at
windows-xp-usb, and h4>
windows-vista-keylaunch any different principle, two systems is how to start: In the
Windows 7-usbP dual system, strong>
windows-vista-usb uses bootmgr take over the system startup mode. Computer self-test is complete, start to find active, primary partition (usually is C:) and load it. Will continue to read the active partition and then under the startup configuration file (ie C: BOOTBCD) and the c: boot.ini, and under the BCD Boot.ini startup information stored in the boot menu list (that is, dual boot menu). For dual-system users usually lists
Windows 7" and the "old versions of Windows". If you choose the former, Bootmgr control to the system directory of
Office 2010 usb Winload.exe (in Windowssystems below) and then started
Office 2010 professional plus. The latter, Bootmgr control to NTLDR, and then began to read the c: boot.ini and lists them in the boot menu configuration. Failure to start mainly in the Bootmgr (if the file is missing), BCD (boot configuration error message), Winload.exe (the file is missing leading to Vista can not start), Ntldr (the file is missing result XP can not start) these documents. (My case files are missing bootmgr, BCD file to start the message configuration error) Let's solve the problem: 1, first we need some backup files (bootmgr, ntldt, bcd, bootsect), if you have
Windows 7 system disk, or mirror, then can extract. There is also a tool - EasyBCD Note: EasyBCD in XP running under needs
Microsoft. NET Framework2.0 support. 2, the following operations are carried out in
windows-xp-usb, because he was hidden and system files, so the best display system and hidden files in the folder options in Click to view, remove hidden protected system files (Recommended) and Select Select display so files and folders. The bootmgr, ntldt (usually under C drive, do not copy) to the C drive under. (The C drive is the default for the system, according to the specific case may be) The bcd, bootsect copied to the C: boot directory 3, and then run EasyBCD
