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List of contents of this article:

• 1, Desktop/icon and taskbar of the operating system
• 2、desktop operating system classification
• 3,Walletinvestor digi plus How to cancel the win7 desktop icon small shield?
• 4, How to set the system desktop background in win10?

desktop/icon and taskbar of the operating system

Press the Ctrt+Alt+Del key combination at the same time to open the task manager, and the explorer (i.e. explo Rer.exe) The process is over.

At the bottom left of the Windows desktop, the "Start" button and taskbar are set. As long as the system is running (unless the option to automatically hide the taskbar is selected), it can be seen at the bottom of the screen. ( 1) "Start" button. The "Start" button is located on the left side of the taskbar.

Press the three keys of ctrl alt delete at the same time, and then select Task Manager to open Task Manager. In the task manager panel, we click the application to open the interface of the application.

The reason why all the icons and taskbars on the computer desktop are missing may be: your computer is poisoned.

If the icons and tasks on your Windows 7 or Windows 10 computer desktopThe columns have disappeared. You can try the following methods to solve the problem: press Ctrl+Alt+Del to open the task manager. In the task manager, click the "File" menu and select "New Task".

Desktop operating system classification

The currently popular modern operating systems mainly include Android, BSD, iOS, Linux, Mac OS X, Windows, Windows P Hone and z/OS, except for a few operating systems such as Windows and z/OS, most of the operating systems are Unix-like operating systems.

Classified according to the design architecture: it can be divided into simple operating system, time-spliting system, real-time operating system, network operating system, distributed operating system, etc.Classification according to the operating environment: it can be divided into desktop operating system, mobile operating system, server operating system, embedded operating system, etc.

At present, the common operating systems on microcomputers include DOS, OS/UNIX, XENIX, LINUX, Windows, Netware, etc. But all operating systems have four basic characteristics: concurrency, sharing, virtuality and uncertainty. The main goal of configuring the operating system on the computer system is first of all related to the size of the computer system.

Unix operating system: It is a powerful multi-user and multi-tasking operating system that supports a variety of processor architectures. According to the classification of operating systems, it is a time-sharing operating system. First by KenThompson, Dennis RItchie and Douglas McIlroy developed it at Bell Labs at AT&T in 1969.

How to cancel the win7 desktop icon small shield?

The removal method is as follows: There is a small yellow shield on the desktop icon of the win7 system. Find the small search box at the beginning. Enter "Change" in the search box, and then click "Change User Account Control Settings". Pull the pull rod to the bottom grid, and then click OK. Finally, the computer needs to be restarted before it can take effect.

Question 1: How to remove the small shield on the desktop icon of the win7 operating system? Remove this shield.

Method 1 in Win7, if there is a program that willWhen the system is changed, UAC (User Account Control) will issue a notification asking the user to confirm the change. Any software with a shield logo on the icon means that the software needs to pop up the UAC (user account control) confirmation message to run.

How to remove the shield on the software icon: Take the win7 system as an example, first click the start button in the lower left corner of the computer and select "Control Panel" in the open menu. Then click the "System and Security" option in the open "Control Panel" window.

How to remove the pattern on the computer icon of the win7 system: The shield on the icon means that you need administrator permission to run this program, which is not harmful to the computer. This is the default setting of the system. If you do not remove the shield on the icon, you need to confirm the administrator permissions to run the program with the shield.

Click Start, click Control Panel; click System and Security; Click Change User Account Control Settings; Drag the slider to the bottom where it is never notified, and click OK.

How to set the system desktop background in win10?

1. Open it firstThe computer enters the desktop, and then we right-click in the blank space to open the menu, and then select the personalization option at the bottom of the menu. Then we will enter the personalized window, and we can select the background in the menu on the left.

2. Click the desktop start menu and click the settings icon to enter [Settings]. Find [Easy to Use] on the settings page and click to enter. Find [Display Desktop Background Image] on the right and turn on the button.

3. First of all, click the [Start] icon in the lower left corner according to the arrow in the figure below. The second step is in the pop-up menu bar, click the [gear] icon according to the arrow in the figure below. Step 3 After opening the [Settings] window, click the [Personalization] option according to the arrow in the figure below.

4. Method 1: Right-click the mouse button, and the menu bar will appear.Select the personalization below the menu bar and click to open it. In the next interface, find [Background] in the menu bar on the left side of the page, click it, and the background setting page will appear on the right.

5. A high-definition picture that meets the resolution of your computer monitor. Your computer setting steps: Find [Notification] in the taskbar and click the [Notification] button. Click [All Settings] in the menu bar on the right. Click [Personalization]. On the right is the current desktop wallpaper settings.