The computer does not shut down properly virus free .

and Qihoo 360 Security Guard.

These are the official addresses!

Reinstall the system again.,XP has been used for a long time and there are many problems.,I also think Rising is not as good as Kaba.。

Hello. How long has it been since I bought the computer, and how long has it been since I installed the system this time?

How much capacity is there for the C drive?

Your question is too complicated, I hope you can explain it a little more clearly. That's how it can help you.

If you are not installing the system when you bought a computer, it is recommended to install the system that was pre-installed when you bought a computer.

If you have installed the same system as the computer you bought:

First soft and then hard, reinstall the operating system, do not install software, patches, drivers, etc., and see if there is still a problem with booting? If you don't install drivers, patches, and software step by step, and find something that isn't suitable, don't install it.

Please note: If you restore the system or reinstall it, when installing drivers, patches, software and other things, be sure not to install the things that affect your accident this time, otherwise it will be restored or reinstalled in vain.

Check the motherboard, the motherboard aging, capacitor failure or bursting, the motherboard and the chassis backplane short circuit can cause a restart, you can take the motherboard out of the chassis to check or test, and then check whether the bottom of the CPU fan heatsink silicone is dry, if it is dry, clean the silicone on the CPU fan, and then recoat the good silicone.

According to your description, it may be that the memory and the memory slot are not in good contact, or the compatibility of the new memory is not good (with the book or the original memory), or the new memory has quality problems.

It is recommended to try separate single insert memory. If only the original memory is inserted and the function is normal, try to insert the new memory. If it's normal, it's 2 memory compatibility is not good, if it's not normal, it's a problem with the new memory or bad compatibility with the motherboard, find a merchant to return it.

BTW: The shutdown is abnormal, and many times it is a software problem.

When the computer can't be shut down, as long as you press and hold the shutdown button for five seconds, then it will be able to shut down automatically.

If your aunt's house can't be turned off, you can suggest pressing the ctrl+exit key together.

1. Computer poisoning, this is the most common reason, broadly speaking, poisoning includes malicious plug-ins in your computer, or remote control Trojans, etc., which may cause key problems in your computer.

2. The software in the computer is conflicting or incompatible, if you have a lot of software installed in the computer, it may not be able to shut down normally.

3. System error, system file loss, or error. These are the things that may result in the loss of computer system files, or the installation of software that conflicts with the system, etc. can cause this kind of problem.

4. The computer is updated, and sometimes the computer will be updated with the latest patch, so that when you shut down, you can't shut down normally, and you can't shut down until the system patch is installed. But there will be a prompt in this case, and it will automatically shut down after the installation is completed.

The computer cannot be shut down normally solution:

1. In this case, first restart the computer, (hard restart, that is, press the restart button directly, or directly power off and restart), some simple system errors will self-repair, and see if it can be shut down normally.

2. Scan the computer with anti-virus software or 360 security guard and other security software, find malicious plug-ins or virus Trojans, remove them, and restart the computer to see if it can shut down normally.

3. If it is caused by a system update, it is better to wait for it to be updated and shut down.

4. If the above methods do not work, you may have to restore the system or reinstall the system.

If it doesn't appear often, just press the power off button to turn it off. If it happens often, you can try it as follows:

1. Use the latest version of anti-virus software to conduct a comprehensive investigation and killing.

2. The software or driver is not compatible with the system, reinstall or upgrade the driver.

3. Faults such as memory, graphics card, hard disk bad sector, etc., in addition, voltage instability can also cause crash failures (if the memory is too small, upgrade the memory).

4. Incompatibility caused by upgrading hardware.

5. Too many junk files, too many disk fragments, etc.

6. If it still doesn't work, it is recommended to go to the computer maintenance department to test it.