WIN8 can't enter safe mode by pressing F8?

Win8 changed the security mode entry method, probably because many motherboard manufacturers are more brain-dead, like to use F8 to do BIOS shortcuts, so press F8 in Win8 to enter the safe mode, and some people say that you can press shift+F8. Going in, but I haven't succeeded in pressing the keyboard. It seems that even if this method is correct, there are limitations. Here are three ways to enter the security mode.
Four methods:
Method 1: Enter through the metro interface (need to enter in the system settings)
Method 2: Enter through the boot menu (need to go in the system settings, and need to change back, otherwise Can not go back to the normal system)
Method 3: Add a boot item, enter in the system system (similar to dual system, select when booting)
Method 4: F8 enter during boot (same as XP, Win7)
Method 1:
1. Move the mouse to the lower right corner and select Settings in the pop-up sidebar. 2. Select Change PC Settings

3. Switch to the General tab. Click on the immediate start in the advanced startup, it will restart immediately, you can enter the safe mode

Method 2:
1, Win+R open the run, enter msconfig

2, switch to boot Menu, select the current system, check the security boot in the boot options, and then confirm the restart, because it is a boot item, so after using the security mode, you need to remove the security boot, otherwise you will not go back to the normal system
There are four options here:
Minimum: Safe Mode
Other Shells: With Command Line Safe Mode
Active Directory Repair: Repair Active Directory Domains
Network: Safe Mode for Networking

Method 3:
1, Win+X Open Menu, Select Command Prompt (Manage


2, enter bcdedit /enum /v, then enter
3, find the windows boot loader, then fill in the identifier and the value corresponding to descripqion into the red part below, and then enter Command, and press Enter to confirm bcdedit /copy {Identifier} /d "descripqion(Safe Mode)"

4, Win+R open, enter msconfig

5, switch to Boot the label, select Safe Mde, check the following safe boot, the meaning of the four options refer to the second step of the second method

6, after restarting, you can see the security mode just established, Click to enter

Method 4:
1, Win+X open menu, select command prompt (admin)

2, enter bcdedit /set {default} bootmenupolicy legacy

3. After restarting, press F8 madly, you can enter the following advanced startup items, very familiar with it.

Four methods, if Use only safe mode once, then use the first method is good, if frequently used, the method is suitable for three and four, in particular Method four, as second method is not recommended