Considering the stability and compatibility of Win8, I believe that many people are equipped with Win7 and Win8 dual systems, but after installing it, you will find that the boot menu will bring a lot of problems. In order to help everyone better, share the situation with you here, write this article in order to help more people to take less detours, the methods in the article are pro-test. This method is applicable to Win8's full line of products so far.
First talk about the possible two situations:
A. First install Win7, then install Win8
Bad consequences:
1. Win8 is the default system after booting, if you choose Win7, it is bound to Will restart and then enter Win7
2.Win8 once collapsed, no system disk boot, even Win7 can not enter
Analysis reasons: As we all know, Win8 introduced a quick start this function, the official statement is Part of the information required for system startup is stored in a file, and it is saved directly after booting, which saves a lot of time. But in fact, to correct its essence, it is actually dormancy. So this is why the metro boot menu appears after the Win8 icon is displayed, not before this, because the default quick start is turned on, then the boot will not directly read the boot, but will enter the system first, if The boot menu is placed before Win8 starts, so it will be skipped directly.
Workaround:
1. The principle is to restore the menu of the metro to the normal menu that is started when booting. I personally use BCDautofix v1.23 (BCD), of course you can also use Win7 bootsect to fix. You can fix it in Win8, but it turns out that under Win8, there is a certain probability that there will be a false shutdown phenomenon, the power indicator will not go out, and the keyboard will return to the login interface after knocking the keyboard. The reason should be the nature of the quick start function. of. Therefore, it is recommended that everyone still be advanced Win7 repair, after the automatic repair is completed, you can run the msconfig command to enter the system configuration boot label to modify the default system and wait time.
As for the display text of the operating system, you can change it yourself in the Win7 optimization master. This requires the netframework 3.5 environment. I installed 3.5 in my Win8. The children who are not installed can run under Win7 and modify the operating system display text. I modified Windows8 and Windows7, the display is simple, the upper and lower order can be adjusted, my is to put Windows8 on it.
This is basically completed, then enter Win8, press win+X to run the command prompt with administrator privileges, enter the command powercfg -h off, or manually turn off the quick boot in the power option of the control panel, because only It is the real shutdown, the boot menu in front of the Win8 icon will be displayed. Otherwise, you will still enter Win8 directly, and no boot will be displayed. In fact, it is not awkward to turn off, just about 10 seconds slow, the total time is about 30 seconds, it will not have much impact, but Win7 does not need to restart once, and then go to the control panel to open or run powercfg -h on is also OK.
2. Run Windows cmd (by Vista primary school) as an administrator, enter:
bcdedit /export c:\\bcd_backup
bcdedit /default {current}
bcdedit /displayorder {current} /Addfirst
bcdedit /timeout 30
B. First install Win8, then install Win7
Solution: Relatively good solution, just set Win8 as the default startup item, then turn off Win8 system like A case Quick start is OK