Of all the complaints among computer problems, the most common one that encountered by lots of computer users is that their computer take very longer time to start up or just open a simple application. So why do you have the similar problem? Normally, the answer to your question is related to the fragments on the hard disks. The more fragments on the hard disks, the more time it will take to input or output the files, significantly slowing down the computer. 

As we all know that when using the computer, it is avoidably for us to store some files/programs on the computer for further usage. Hopefully, it is better to store the same file at a single place contiguously like putting things in order in the warehouse so as to easily find them out. But in many cases, the file is cut into different parts and then located in the gaps among other files instead (gaps come from actions like deleting and removing files). Moreover, no matter what the computer is running, the entries to the hard disk are happening always. When the hard disk is fragmented, it is possible for us to read/write the file, but it will increase the movement of the hard disk head, making it move too much than ever before and then shortening its lifespan. 

So to fix a slower computer and maintain the hard disk, a disk defragmentation is necessary. In my opinion, the Windows built-in disk defragmenter should be the first tool you need to run when noticing that your computer is running slower than as usual. But if you have defragmented your computer before with it, you may find that it consumes very long time to defragment the whole computer smoothly and quickly for it will either stop at the halfway or automatically skip some certain system file with the extensions like DLL, lnl. This was what I met when defragmenting my computer, so to thoroughly defragment your computer, please rely on a reliable professional defrag program in order to ensure a complete and faster defragment process. 

As what you can see above, it is necessary for all computer users to regularly defragment the computer. But to always ensure a complete defragmentation, please be patient to read through this article for more useful tips. 

To defragment the computer much faster, please remember to close all running programs (especially the anti-virus program and screen saver programs), and do not do anything else such as seeing movies or listening to music and so on during the defragment process, in order to throw away all other unassociated interference. If possible, it is appreciated that you can boot the computer into safe mode before the disk defragmentation. Hence, it will be much faster in defragmenting the computer.

But considering that, nowadays the size of the hard disk is much bigger than before, it is advisable for you to defragment your computer with a trusted defrag program for they always applies with very advanced defragment technology and then quickly analyze the hard disk for fragments and then reassemble them in minutes, making the computer easily run faster and also extend the lifespan of the hard disk. 

Among all the defrag programs I have ever used, Advanced Defrag is the one that I love so much: easy to use and powerful in defragmenting the hard disk and the PC registry. So if you like, you can click here to have a trial.

In conclusion, a simple disk defragmentation is a must that you should do in daily life to solve and prevent a slower computer. If you have never run a disk defragmentation before, please go to defragment it immediately and it will return you a faster computer which runs like new.