As we all know that, computers are the same as human beings which need to be taken care of. If so, it will always work at the maximum optimization status and extent the lifespan. On the contrary, firstly, this will some serious problems appearing like some important data lost improvably, computer crashes every two or three days, or unable to complete the scheduled work; secondly, this will significantly shorten the lifespan of the computer. So we can say that daily computer maintenance is necessary in order to optimize PC performance.

Normally, computer maintenance contains two parts: hardware and software maintenance. 

Hardware maintenance means that it is needed to do some jobs like cleaning dust. After being used for sometime, the computer may get dusty inside for the fan that pulls hot air outsides are always pulling in air, which laden with tiny particles of dust. When these particles cling to electronics, they act like a blanket to hold in heat. And the dusts always stay at the biggest heat producers like CPU, heatsink, and video card. So a cleaning dust is necessary regularly in order to maintain the PC performance. If possible, please keep the area around your computer as dust-free as possible. 

Software maintenance, including protecting the computer from being attached by virus, and regularly deleting the unnecessary system junk files, running a disk defragment is necessary in optimizing PC performance. Here, there is no need to talk about the importance of the anti-virus program to the computer for it is known to all that it is a must in order to protect the computer, but instead, we will particularly discuss the parts that always be neglected by lots of PC users when maintaining the computer: junk files cleanup and disk defragmentation. 

When using the computer it is inevitably for us to surf websites and download programs, which always bring some useless temporary file on the computer. They do nothing but harm to the computer. So it is necessary for us to clean up the system junk files in a regular basic. I found that there is an article tells very detailed information on junk files cleanup . If you want more information, you can go here for more detailed information. 

Besides, a disk defragmentation is indispensible in daily computer maintenance for it will rearrange the contents on the hard disk in order to making a complete file always stays at the same single place coherently and contiguously, Hence it will be much easier to get access to when trying to input or output it. Therefore, the computer may always run at faster speed and also extent the lifespan of the hard disk and the computer. 

It is known to most PC users that they can defragment the computer with windows built-in defragmenter by directly going to Start and then All Programs, Accessories and system tools. But here, in order to greatly optimize PC performance, I recommend you to use Advanced Defrag which is very suitable to solve modern big volume hard disk. It can not only speedily defragment the computer, but also provides you very unique features to maintain your computer like defragment PC registry, real-time defragment and completely web-report. With this defrag tool in hand, I believe you can maintain your computer without any problem. 

In a word, there are many details that you can do to maintain the computer, but please do not miss the importance of disk cleanup and disk defragmentation, which will help you greatly optimize PC performance.