What if the Win7 system crash fails to fix and enter safe mode?

The specific operation is as follows:

1. Insert the USB flash drive into the USB port of the computer.

PS: There is no U disk boot disk, you need to make the U disk boot disk on other normal computer. You can refer to the pocket PEU boot disk creation tutorial.

2, press the power button, quickly press the DEL button on the keyboard or the F12 button (before the computer enters the boot program), enter the BIOS settings interface, find the BOOT column, the option with the USB word or The option that represents the U disk brand is set as the first startup item, and press F10 to save and exit (for details, please refer to the prompt on the BIOS interface) as shown in Figure 1:

Figure 1 BIOS Setup U Disk is the first boot disk

PS: Different motherboards may enter the BIOS differently. At the same time, different motherboard BIOS settings U disk is not the same as the first boot disk option, the specific motherboard BIOS settings The method can be searched in this site. 3. After the setup is completed, the system will automatically restart, enter the pocket PE function selection interface, use the arrow keys on the keyboard to select “Start Pocket U disk Windows8PE maintenance system” and press the Enter key, as shown in Figure 2: Br>

Figure 2 pocket PE function selection interface

4. After entering the pocket USB flash drive Windows8PE maintenance system, double-click on the desktop & computer; in the open computer window, see if the disk has Reduce, that is, if there is no drive letter disappeared, if it does not disappear, consider the problem of bad sectors of the hard disk. If it disappears, the hard disk is necrotic. Second, determine whether it is a hard disk bad track 1. Then just the steps, close the computer window, double-click to open the icon named "DiskGenius" on the desktop, as shown in Figure 3:

Figure 3 open DiskGenius

2. In the DiskGenius window that opens, select “Hard Disk”→ in the hard drive drop-down menu, select “ Bad Track Detection and Repair & rdquo;, as shown in Figure 4:

4 Select “ Bad Track Detection and Repair & rdquo;

3. Next, follow the DiskGenius prompts, step by step. The process of bad track detection and repair may take about 2 hours depending on the size of the hard disk. You need to wait patiently.

If the final test result is no problem, then you need to consider whether it is a problem with the Win7 system installed. It is best to reinstall the system. However, only the disc reinstallation system and the U disk reinstallation system can be selected.