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I strongly suggest that you keep this 8. 1, and you can install a dual system, so that this 8. 1 can be accessed at any time when something goes wrong, which is very convenient, and this genuine 8. 1 is still brought back to the factory, which is a problem in Dont Ask For Help! ! ! And win 10rtm will be released soon. As long as it is genuine win8 and 7, it can be upgraded to genuine win 10. I suggest you keep this pre-installed genuine system. It costs money to buy a computer (generally speaking, it costs 399 to authorize the system)! ! ! !
With my following method, it can be installed in 7 minutes, and there is no need to convert mbr partition table in reverse, let alone use any third-party PE, which is troublesome! This method makes little changes to the computer:
Open 8. 1 directly, open the disk manager, compress the disk according to your ideal partition, and choose an ideal size for win7, and recommend 50GB and above, 50GB 5 1206 MB. 100GB means 102407MB. Ok, after compression, right-click the unallocated space and create a partition.
Then download a gemeix, click the application tab, and select your win7 install.wim (under the Source folder of the root directory of the win7 installation gemeix). Pay attention here! It must be 64-bit win7! 32-bit cannot start uefi! And 32-bit does not support large memory, not recommended! If not, download CN _ Windows _ 7 _ Ultimate _ With _ SP1_ x64 _ DVD _ u _ 677408. ISO ISO image can be directly right-clicked under win8! No decompression! No need for any third-party virtual optical drive! ! !
Select different volume numbers, that is, different versions, on the right side of Gemeix's Apply page, and recommend the professional version (more convenient for us to go to JH in the future) or the flagship version. Pay attention to this step. Otherwise, it defaults to the home version.
Ok, let's move on. Wim file select your win7 install.wim, and the target disk select the disk you just created.
When finished, press Win+X, select the command prompt (Administrator), and then enter:
BCD boot X:\ windows/d/add last/l zh-cn
X is the drive letter of the partition you just created, and /d /addlast means adding win7 as the second option instead of the default preference. If you want to start win7 by default, do not add the /d /addlast parameter. Pay attention to the blanks in my explanation.
Then, close the window. If you want to reduce the time to start the menu, then Win+R, enter msconfig, the default items and timeout can be set in the boot, and you can specify them at will.
Then reboot into the bios. In this case, Fn+F9 will restore the default settings, and then turn off the secure boot. Select Lagacy support from UEFI startup. Please keep UEFI as an add-on, then find an OS optimization default option (forget it), change it to another OS, and then Fn+F 10 save and restart.
Ok, restart, you can choose to enter win7.
Follow-up JH matters recommend WGA Chewing 0.9 as a powerful tool. The rest, such as this loader, that loader, pony and so on, can do nothing! JH will be easier if you install the professional edition and the enterprise edition. I won't say much about what KMSPico knows! Using the latest version, the success rate is very high! !
This is one of the most perfect solutions! No need to destroy the original genuine win8. 1! It is much better than the plan provided by Lenovo official website to destroy win8. Moreover, the operation is basically done under win8. 1, which is easy to complete.
Hand-made, feel free to ask me if you have any questions, follow me step by step and get it done in minutes! ! !