What is the reason for the box selection interface to appear as soon as the A button is pressed on t

This should be that you set some kind of shortcut key,It's similar to taking a screenshot of what airplane mode or something.,You set it to a shortcut key that will cause this.,Did you update the system on this laptop?,Is it a windows system now?。

This is into the BIOS, is it a mistake to touch which key, or is the default boot device turned into a USB disk? Press ESC to opt out. The computer will restart,See if you can enter the system,If it still can't enter,It may be that the hard disk can't be found (but the picture shows that the hard disk can be recognized normally),At this time, you can use the USB disk with the PE system to start the computer,Use the PE's built-in boot area repair tool to repair the boot area (select C disk) to try。

Steps: 1. Some computer motherboards have added many other functions in order to be more user-friendly when setting up. When the BIOS is not set up correctly, restarting the computer will automatically enter the BIOS.

Solution: Enter the BIOS, press F9, let the BIOS go back to factory settings, and then F10 is saved and exited.

2.The system boot is lost.

If the motherboard supports UEFI boot, please also install the UEFI boot system.

You can also use a PE disk to enter the PE system, then click Start Menu - All Programs - System Installation - Boot Repair Tool, and then select the drive letter you want to restore boot for automatic repair.

Do you need to set it up?

This is caused by a motherboard BIOS error, you can restore the motherboard parameters, if there is still a problem, it may need to replace the computer or an external device.

QQ is an indispensable entertainment and communication tool in our daily life, and it comes with the function of taking screenshots.

Tap the feature to take a screenshot, or press a shortcut.

Ctrl+Alt+A, the following icon will appear, similar to a box, it is best to remember this shortcut, it should be this aspect, simple, easy to operate.

Hold down the left button and drag, you can drag and drop in any direction, mopping the effect you want to achieve.

Release the left button, and the following interface will appear, and you can save the image.

Method 2: printscreen button + paint tool:

Whether it's a desktop or laptop, there's a printscreen button on the keyboard (some are prscrn

sysrq key), which is actually the "shutter" key for the screen capture. When you press it, the system will automatically save the current full-screen picture to the clipboard, as long as you open any graphics processing software and paste it, you can see it, of course, you can save it or. Hint:

The printscreen key is generally located on the right side of F12.

The easiest operation to grab the full screen ———: press the printscreen key directly, then open the built-in "Paint" (you can also use PS, or other drawing software), and then press Ctrl+V.

Grab the current window——— Sometimes, due to some need, you only want to grab the current active window, and the method of using full-screen capture is obviously not suitable. At this point, you can hold down the alt key and then press the printscreen key to grab only the current active window.

Grab cascading menus ———1First, use the mouse to call up the cascade, press the printscreen key, and then open the system's built-in "Paint" (you can also use PS, or other drawing software), and then press Ctrl+V.

You can use the QQ screenshot tool, CTRL+SHIFT+ALT+A, first press CTRL+SHIFT+ALT+A at the same time, use the mouse to bring up the cascade menu, and so on, release the shift key, and use the above method QQ screenshot to intercept the cascade menu, but this method is not 100% can intercept the cascade menu, some can, some can't.

1. After pressing F8 on boot, select "Safe Mode" in the Windows Advanced Boot Options interface that appears

2. Press the Enter key, restart the computer after entering safe mode, press F8 again, select "Last Correct Configuration" in the Windows Advanced Boot Options interface, and press the Enter key.

Check if the Ctrl key is pressed and not bouncing.

You just cancel the shortcut.

Press win (that's the one on the keyboard.)

Open the button of the start menu) +e to turn on my computer....So your situation may be that key is stuck, just tap that key, or press that key a few times....(Just don't let that key get stuck...)）

On my keyboard is a flag pattern, which is the ...... of the key between ctrl and alt anyway

Cause: The Windows key of the keyboard is stuck, triggering the shortcut.

Situation 1: If there is a physical problem with the keys, check whether the windows key pops up and let the keys pop up.

Situation 2: If there is a logic problem with the keyboard, you can recover it by pressing the Windows key. If it still doesn't work, you can press shift, ctrl, and alt in order to try multiple times.

Press the Windows+D key on your keyboard and the web page will be minimized.

Pressing the Windows + E key on your keyboard will open Explorer.

It is not possible to minimize the open web page if you press the "d" or "m" key alone, nor is it possible to open the explorer by pressing the "e".

It may be caused by the windows key sagging, and it can be done by pressing the windows key a few times repeatedly to make it pop up.

If it doesn't work, you'll have to change the keyboard.

Press win+e to turn on my computer.

It could be that key is stuck, just tap that key, or press that key a few times.

The start key on the bottom of your keyboard is glued. That's the one (win key) you take the keyboard apart and clean it. It may be that some garbage has fallen in, or that there is too much dust in the keyboard that has not been cleaned for a long time.

"Windows" on your keyboard"The shortcut should be non-elastic. It's the square of the Tianzi shape.

It may be that the system is automatically upgrading, don't worry, after the upgrade is completed, it will be restored to its original state.

Content expansion:1、Press one of the following keys to contimue

2. ESC to resume normal startup Press the ESC key to exit and resume normal startup.

3. F1 to enter the BIOS setup utillty Press the F1 key to enter the BIOS setup utility.

4. F10 to diagnose hardware Press F10 to diagnose hardware.

5 F12 to choose a temporary startup device Press F12 to select a temporary startup device.

6. Press Enter to Parse.

Step 1: Plug in the power cables of the projector and laptop.

Step 3: Turn on the power switch of the projector, and there will be a power light on the right. Of course, the computer also has to be turned on.

Step 4: When the above instruments are ready, press the key combination at the same time: fn + f4, because different computers may have different function keys, but the function keys will have a logo on them, generally two screens, indicating that they can be switched between each other.

Step 5: At this time, the connection is successful, if the projector shows the picture, but the computer screen is black, then press fn+f4 again, so that the computer and the projector are fine.