Winload.exe's error code 0xc0000428 indicates that its digital signature cannot be verified. 1. Because winload.exe is the boot file of the system, if there is a problem, you cannot enter F8 security mode. 2. Solution: Enter the hard disk files of WIN PE system and operating system, and copy the winload.exe in windows/system32/boot to windows/system32 for replacement. 3. Add 1) and Win PE system, which can be burned by CD, or operated by startup disk making software of U disk system such as peach and Chinese cabbage. 2) Some computers can't operate hard disk files after entering the Win PE system, which can be solved by referring to the following methods: a. Restart the computer, and press the corresponding shortcut key to enter the bios setup interface after the boot screen appears. The shortcut keys to enter the bios setup interface are generally one of del, F2 or F 1, and users can try them one by one. After entering the interface, switch to "Advanced Menu" through the left and right arrow keys on the keyboard, then move the cursor through the up and down arrow keys to select "SATA Configuration" B, and then press enter to open the SATA mode window, where we can see two options: IDE and AHCI. Here we choose the IDE option, press enter to confirm, and finally press F 10 to save the modified settings. C, after completing the above operations, when we enter pe again.