Browsing articles in "computer problems"

What is Windows Prefetch File?

Have you ever heard of Windows Prefetch File? Windows Prefetch Files are used to optimize application loading and Windows boot up. In Windows XP, the main component is called Prefetcher and in Windows Vista, there are 2 major components that are working together to increase the prefetch ability which is Ready Boots and Super Fetch.

Prefetch files are used to monitor and adapt the usage pattern of files and applications over period of time and to load the majority of the files and data needed into memory so that they can be accessed directly and very quickly when needed instead of searching them from the hard disk making it slower due to seek and spin time of the hard disk.


The picture above should show you the location of the prefetch file. There’s also a rumor that if you delete the files in the prefetch folder, it will make your computer loads faster. Well, eventually this is against the principle of prefetch file in the first place. Deleting the files in the prefetch folder will make your computer takes a longer time to boot.

Prefetch files can be identified as files with extension *.pf or File Extension OPF. Remember, these type of files are meant to increase the speed of application loading and deleting the files will make your program to load longer.

Timeout problem when upgrading wordpress 2.7

I know many people noticed the function of one click upgrade from WordPress 2.7 onwards. You can either use that to upgrade your wordpress installation or you can use WordPress Automatic Upgrade Plugin to upgrade wordpress installation.

Using one click upgrade, it just took a moment to install and upgrade your WordPress installation. The best part of all, it’s automatic. With a click to a button and voila, everything is complete.


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What is computer drivers ?

Do you know that every hardware on the computer needs drivers ? No, I don’t mean you. You’re not the driver of your computer, literally speaking. Just imagine a car. Without a driver, it can still move but without a driver, the car might just move straight and will not move as we wanted and desired. The same goes to computer drivers. Without a proper driver, the hardware can still be used but it might not work properly.

There are a lot of drivers out there. Generally we can categorize drivers to two types. One is the generic driver for a hardware type and another is a specific driver for a specific hardware.

Generic driver is a universal driver that can be used with a hardware type. Usually this will be provided by the operating system itself. Generic allows a hardware to be run with minimum capability to allow the user to use it. Sometimes, some generic drivers can’t support certain hardwares from various vendors. For example, generic driver can be used to view an ATI graphic card without the full capability such as 3D support and graphic acceleration until ati drivers are installed to the operating system.

Specific drivers will enable specific hardware to run smoothly and at it’s full capability. Usually a hardware vendor will issue a specific driver for a specific hardware but sometimes they will release a general pack for a group hardwares. One thing for sure, you can’t use a driver released by a vendor with another vendor’s hardware. For instance, you can’t install epson drivers for printers from Canon.

There you have it. An introduction to computer drivers. Hopefully, I have the time to write more on how can we check the hardware manufacturer, model of the hardware and the correct driver for it.

Getting know the file extensions

There are a lot of file extensions in operating systems as well as on the internet itself. Different file extension or usually referred as file types are used by different applications or as part of the program itself.

In operating system particularly Windows, we have extensions like *.exe, *.com, *.inf, *.bat and others while others that used on the internet are like *.html, *.php, *.swf and much more. I won’t go into details file extensions on Linux and Unix where it varies to the operating system distribution themselves. Anyway, let’s look at some file types that are on your computer but you might don’t have any clue on them.

File Extension PPS

PPS or Power Point Slideshow usually used for Power Point Presentation slides. Usually this is what people send as attachment through emails. Even if you don’t have Microsoft Office Power Point, you can still view the presentation file but without the program itself, you can’t edit the presentation file. You can use Open Office or Star Office as an alternative for Microsoft Office to edit the presentation file.

File Extension TMP

TMP files are usually stands for temporary file. Sometimes it exists not only as a file but also as a folder. Generally, this type of file is used as a temporary storage for an application and it’s safe to delete. In worst case scenario, some programmer or application developer use this file to hide important information on the application itself, hoping that nobody will take interest in the file because it’s usually worthless.

File Extension BIN

BIN extension files can contain any type of data and encoded in binary form. BIN files can be a file used for computer storage and processing purposes. Usually CD or DVD images are distributed with .BIN extension with another .CUE file. The images can be burned with CD/DVD burning program like Nero Burning Rom or can be mounted directly to the computer using virtual CD/DVD software such as WIN ISO program. In Linux, it’s a self extracting binary files and used to install programs on Linux.

File Extension TORRENT

This is one of the favorite file extension for downloading various files of the internet. Files such as movies, music videos, mp3s, application as well many others. Usually the torrent file needs to be opened with a Bittorrent application such as Utorrent and Azureus. Beware, the torrent technology is not illegal because it’s just a file sharing technology but depending on some countries, the file that you’re downloading might be illegal.

There you have it. Four of file types that you might come across but never have any knowledge of it. Just let me know if you need any information on the file types that you’re not sure of.