How does Win8 not have F8 repair computer function?

In Win7 and earlier Windows systems, press shift+F8 to enter the “Advanced Startup Options”. Windows 7 includes the “Repair Computer” option in the default installation. , you can enter the Windows Recovery (Windows RE) environment. If not, you can use CMD as an administrator under the system, type “reagentc //info”, press Enter to display some Windows RE information, and the value after the Windows RE” option is enabled. ;0”, when Windows RE is disabled, after determining that Windows RE is disabled, type the “reagentc //enable” command line and press “Enter” to re-enable Windows RE.
But, because Microsoft is trying to improve the boot speed of Win8, it is too fast to press F8, so Microsoft simply cancels the F8 boot “ advanced startup item. (In the middle of Win8-DP version, shift+F8 can be started, but The CP version has been removed) and the advanced startup option is automatically launched when there is a problem with the system.
We can also manually enter through the following methods:
1, Win key + i key, select more computer settings;

2, in the "General" option, the last "ld"; Advanced Start & rdquo;, select “ Restart & rdquo; you can;

3, or when the normal selection restart, hold down the shift key and restart;

4, after reboot, found &ldquo ;Advanced startup item” is also the Metro interface, select <;Troubleshooting>;

5, continue, select “Advanced Options>;

6, here we can see There is "automatic repair";;

7, start automatic repair;

8, select the account that needs to be repaired;

9, enter the account password;
< Br>10, continue;