Why does my computer suddenly become slow and laggy?

Why is the computer suddenly slow and stuck?

Hope this helps: It may be that the CPU is overheating, haha, or it may be that the memory is not enough after being used for a long time

1: Viruses can cause your computer to slow down.

There are two mechanisms of action: First, after the virus invades, it first occupies the memory, and then uses this as a basis to start copying itself endlessly in the memory. As it becomes larger and larger, it quickly takes up the system. A large amount of memory causes normal programs to slow down or even fail to start due to lack of main memory; second, virus programs force the CPU to execute useless garbage programs, making the system always busy, thus affecting the operation of normal programs. , causing the computer to slow down.

Solution: You can use high-version anti-virus software, such as "Norton", "Jiangmin" and "Kingsoft Antivirus". Monitor system operation conditions (including network conditions) at all times. Once a virus is discovered, they will immediately alert the police and automatically eliminate the virus. Since new viruses are born every day, we must also pay attention to updating anti-virus software frequently.

2: Windows operating system becomes huge

As you operate every day, installing new software, loading runtime libraries, etc. make it larger, and more importantly, it is not only its directory that becomes larger, but also its registry and operation. Library. Because even if a program is deleted, the DLL file it uses will still exist. Therefore, as time passes, the DLL dynamic link library files that need to be loaded when Windows starts and exits become larger and larger. Naturally, the system running speed will also decrease. It's getting slower and slower.

Solution: Try not to install too many software that are not used frequently, and do not install and uninstall software frequently. When uninstalling the software, try to delete the software's own DLL dynamic link library files.

Three: New hardware or external devices were later installed.

When new hardware devices or external devices are added to the computer, Windows will detect the device and load the programs required for these devices at startup, thus slowing down the system.

Solution: Do not connect devices that are not used frequently or are not used temporarily, such as "mobile hard drives"

Four: When our operating system has an instant virus checker installed.

In order to avoid virus invasion, we have installed an instant virus checker. When we run some programs, the instant virus checker will scan these programs or software for viruses, thus reducing the running speed of the software. Since new viruses are often generated, the program that indexes real-time virus checking will also constantly update the virus database, so that more viruses can be detected and prevented. Therefore, when there is a new virus database update, the real-time virus checking program will also be updated accordingly. The testing time will be extended during testing.

5: Lack of enough memory

One of the advantages brought by the Windows operating system is multi-linear and multi-tasking. The system can use the CPU to perform time-sharing operations so that you can do many things at the same time. But things naturally have their pros and cons, and multitasking will also put higher demands on your machine. If you have too many applications open at the same time, no matter how large the memory is, the main memory of the system will be exhausted and system resources will be exhausted, thus reducing the running speed of the program and even causing the system to crash.

Solution: Install more memory

6: Too little remaining space on the hard disk or too many fragments

When we often install and uninstall software, create or delete documents on the computer. At this time, the data arrangement in the computer hard disk will be intermittent or very scattered. In this way, when the computer is searching for data, the search speed will be very slow due to the discontinuity and scattering of data.

Solution: Clean up useless files frequently and defragment the disk after cleaning

Why does my phone suddenly become stuck

If the mobile phone is jammed, slow to respond, sometimes unresponsive, etc., we recommend:

1. Restart the machine. If the phone battery is built-in, please press and hold the power button and the volume down button at the same time for more than 7 seconds to restart the device.

2. Too many background programs running on your mobile phone may cause your machine to run slowly and freeze. It is recommended to close some programs running in the background.

3. Some machines support smart managers or memory managers. It is recommended to manually close automatically running applications through this function.

4. If the above situation occurs in only a few applications, it is recommended that you update the application or uninstall it and then reinstall another version to try;

5. Check whether the phone memory is insufficient. It is recommended to uninstall and delete some unused programs or files;

6. Check whether there are system push notifications on your phone. If so, update your phone to the latest system version.

7. If it doesn’t work, back up the data in your phone (contacts, messages, photos, etc.) and try restoring factory settings.

If the problem persists, please bring your purchase invoice, repair card and machine to the Samsung service center for inspection.

Why does the computer suddenly become very stuck?

Test whether the temperature of the CPU and other hardware is too high? Is there something wrong with the hard drive? How have you been operating recently? Try to uninstall all the software, patches, and drivers that you downloaded before the accident, and then take a look at the following methods. If the fault persists, it is recommended to check and kill the Trojans first and try to repair the system (think carefully about the recent operation, the fault will not happen for no reason. If you have any questions, please ask me for communication).

It is recommended that you download the Windows Cleanup Assistant to check for malware and Trojans (please search and download, do not use 360 ​​Guard instead):

Download 360 system first aid kit scanning system

1. Please use the system restore that comes with the system to restore it to the time when the fault did not occur (or use restore software to restore the system. If you cannot enter the system, press F8 to enter the safe mode to restore the system).

2. If the fault persists, use the system disk to repair it. Open the command prompt and enter SFC /SCANNOW and press Enter (there is a space between SFC and /). Insert the original system disk to repair the system. The system will automatically compare and repair it.

3. If the fault persists, set the CD-ROM drive in the BIOS as the first boot device, insert the original system installation disk, and press R to select "Repair Installation".

4. If the fault persists, it is recommended to reinstall the operating system.

Use the system restore method that comes with the system:

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, which is the restore point. After you select it, click Next to restore (Win7 restore system, in the Control Panel and then the Device and Security sub-option and then the Backup and Restore sub-option).

In terms of hardware, test whether the temperature of your CPU is too high? Are there any problems with the hard drive or other hardware? If the memory is not large, it is recommended to add a memory stick for obvious results, and use anti-virus software as little as possible to monitor it.

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