1. What should I do if the Dell laptop cannot boot into the system?

Press F8 when booting until the advanced options appear, then let go, select "Last Known Good Configuration" and press Enter to fix it. If that doesn't work, press F8 to enter safe mode and restore the system or reinstall the system.

If it is caused by hardware problems, it is recommended to discharge the BIOS battery (restore the BIOS factory default values), plug and unplug the graphics card and memory, clean them, and polish the gold fingers of the graphics card and memory (and If there is a problem with the hard disk, download software to repair the bad sectors of the hard disk. You can also format the hard disk, repartition it, and reinstall the operating system. If it still doesn't work, it is recommended to have it checked).

How to use the system restore that comes with the system:

The system restore that comes with the system: "Start"/"Programs"/"Accessories"/"System Tools"/"System Restore", click "Restore my computer to an earlier time", click Next, you will see a dark date on the date page, that is the restore point, after you select it, click Next to restore (Win7 restore System, in Control Panel then Devices and Security sub-option then Backup and Restore sub-option).

2. What should I do if I cannot enter the system when I turn on my Dell laptop?

Hello!

It is recommended that you click and hold the FN key to turn on the computer and try to detect the hardware. If there is no problem with the hardware, then try to restore the factory system or reinstall it!

The method for restoring factory settings on a Dell computer is as follows (the machine is required to be shipped with an operating system, and the customer has no partitions, destroyed hidden partitions, or reinstalled the operating system): (1) Before booting into the system, press F8 , enter the advanced startup options of Windows 7 and select "Repair your computer". (2) Select the keyboard input method. (3) If there is an administrator password, you need to enter it; if there is no password set, just "OK" directly. (4) After entering the system recovery options, select "Dell DataSafe Restore and Emergency Backup". (5) Select "Select other system backups and more options" and click "Next". (6) Select "Restore my computer" and click "Next". (7) After selecting the correct factory image, click "Next" to start restoring the system to the factory state. Note that the notebook needs to be connected to the adapter during the recovery process. Once completed, just restart your computer.

3. What should I do if my Dell laptop cannot turn on?

The solution to this problem is as follows:

1. Unplug the battery and power supply, and leave the computer without any power. When using any external device, press and hold the power button for 20 seconds. This is a discharge of static electricity on the motherboard

2. Connect the power adapter alone, that is, the charger, and turn it on. If it can turn on normally, that means There is a problem with the battery; if it cannot be turned on normally, the three indicator lights on the keyboard will light up a few times.

3. Connect the battery alone to turn on the phone and see how it goes. If it can turn on, it's a problem with the charger. If it can't turn on, check the three indicator lights as well

4. If possible, remove the memory Re-insert and unplug, if the problem is still the same, swap the memory and test if possible.

5. If the problem is still the same after the fourth step, then consider the motherboard or memory problem.

4. Dell notebook cannot open the system

Safe mode is equivalent to minimizing the system and not loading the driver. The restart shortcut key requires the driver, so it is invalid

The prompt is missing If you have the ability to find the files or can find a decent computer, you can go to a computer with the same system or download the missing files from the Internet and put them in the designated directory

For this problem, I suggest reinstalling the system. . . And it is recommended to install normally without using ghost

If the recovery partition and recovery program that comes with the brand are still there, you can also restore the system

After installation, use hdtune to scan the hard drive

< p> It is also possible that the hard disk has bad sectors and the data necessary for normal startup cannot be read

5. Dell computers cannot enter the system and BIOS

bios revision a09 refers to your machine The basic input and output system firmware (bios) version is A09.

Generally speaking, X00, X01 and other versions starting with "X" are pre-market beta versions.

Versions starting with "A" such as A00 and A01 are official versions that are allowed to be put on the market. Whenever there is a major update, it will be reflected in the version number. Now the relevant version in your machine has been updated to A09

If you can still find a newer version online, such as A11 or something, you can use special software to refresh the bios. Generally, flashing to the latest version can improve system performance.

If you cannot enter the BIOS, it is because you did not press the correct enter key.

For DELL series computers, when you start the computer and see the blue DELL logo screen, a prompt will appear in the upper right corner of the screen: F2=Setup, F12=Boot Menu (highlighted), then quickly press F2 Or press the corresponding button to enter the BIOS settings.

Optiplex desktop series:

How to enter the BIOS

1. Turn on or restart the computer;

2. See the DELL icon , immediately press the "F2" key to enter "System Settings (BIOS)";

Restore the original BIOS functions

In the BIOS interface, press "Caps Lock", Num Lock (digital lock) and Scroll Lock (scroll lock)" keys, light up the three lights "Caps Lock (caps lock), Num Lock (digital lock) and Scroll Lock (scroll lock)" on the keyboard, and then respectively Press the following 3 sets of key combinations:

Alt E -- Clear (release) interrupt resources and reallocate them next time. After pressing this key combination, you will hear a crisp "Bi-" sound.

Alt F -- Restore factory settings. After pressing this key combination, you will hear a crisp "Bi-" sound.

Alt B -- Restart.