Why Computer Become Slow?
Usually we often ignore the many aspects that affect our computer speed
, then how can we solve our computer slow issue? I will give you recommendation which we usually ignore, but we are quite practical. So I recommend we focus on the look.
First, The hardware configuration problem, especially graphics memory less than 128MB of and memory less than 512MB
Second, hardware conflicts and driver does not match (of course, because of these reasons and more a result of a slow start, exists in all Windows systems)
Actually, theres another reason, superfetch, which was originally a new Windows Vista technology for the operation of the accelerating system.
But in fact, in some slow hard drive device, such as a laptop, turn it off would be able to improve system responsiveness. Tested in my own laptop, turn off superfetch, and then is observed from the turn on the power to the user login that is logged in, the hard disk light is no longer lit, the time required for this process, saving about 5-7 minutes.
Understand why the superfetch will affect the speed of system startup; we need to first explain a few techniques to fully understand their principles.
Virtual memories, including the Windows operating system including Vista have been in the use of virtual memory, its role is that when physical memory can not meet the application needs, the operating system will start the application part of the data in memory, stored to the hard disk, thus freeing that RAM for other uses. These data are stored to the hard disk, stored in the form of a document, usually the root partition, called Pagefile.sys hidden files.
When these data need to call the operating system locates the data in the pagefile, and returns it to memory. In this process, due to the need of repeated disk read and write, so may result in the application response is very slow.
Pre-Reading Prefetch then to Windows XP, operating system designers to design a pre-read that Prefetch technology, this technology in the system or application starts the process of monitoring data between disk and memory movement law or condition in advance to those who read and write high frequency data saved to the% systemroot% Prefetch folder with the extension. pf file, and a rules-efficient way to store these files. Thus, when these data to be read repeatedly, it can be directly read from the cache file, without having to re-read the hard disk sectors, tracks, looking for the original location of the data naturally accelerate the response speed of the application. But this technique is the main cache is still based on the disk.
Super fetch fast read-ahead to Windows Vista, because the computer's memory has been increasing, designers began to consider the use of memory as read-ahead cache data storage space. For two reasons, one of the memory is not memory power all the data will be lost; two memory did not big enough to accommodate the extent of all applications, therefore Super fetch read and write operations is mainly based on memory, However, the data is written to memory at the same time, will still be written to the hard disk to be used for data exchange. These data in document form, usually their location in the% SystemRoot% Prefetch directory with the extension db.
Superfetch technology is built on the basis of that Prefetch Vista in Super fetch-enabled at the same time they opened the Prefetch function, which further exacerbated the disk read and write. If the speed of your computer's hard drive happen more slowly, such as laptop 5400 hard drive, then Superfetch but will cause your system slows down. So we need to
clean up frefetch regularly to keep our computer at best performance.
by: Ivy
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