win10 how into safe mode

step 1

First click on the bottom left of the [Start] button, and then click [Setup] icon,

Step 2

Click [updates and security] - [Recovery] - [Restart immediately],

Step 3

Then Click [Troubleshooting],

Step 4

Click [Advanced Options] - [View more recovery options],

Step 5

Click [Startup Settings] - [restart],

Step 6

Finally, click F4 can be.

Want to return to normal mode, restart the computer just fine