Reformat (re-formatted) hard drive, reinstall the operating system (OS) and everything necessary ready for the job is not easy. You have to turn the steps as data backup, personal information, reformat the hard drive, install OS, device drivers, hardware (driver), install the necessary applications and the end by copying the data back into the system. All this will "consume" a lot of time, but these are to be performed when the computer is operating an unusually slow or unstable, and most cases of virus infected computers, malware.

Backup the system
partition mode imaging system and stored in a separate partition (backup system) is how to keep your system more secure and help you get back to work fast when the system encounters incidents. Please take this priority before the system "because they". You should create a partition image file when the system is in top shape, such has been fully updated OS patches through Windows Update, install the necessary applications for the job, personalized on-demand system to use and check the status of the system through the Action Center. There are so many system backup utility for free and pay as Macrium Reflect Free Edition (find.pcworld.com/63521) or Genie Backup Manager Home (find.pcworld.com/61958) supports multiple backup methods ranging from CD / DVD, external storage devices (thumb drive, hard drive) and networked drive. In addition, a number of utilities available in the Hiren's Boot CD, Ultimate Boot CD, Bart'sPE as PowerQuest's Drive Image, Norton Ghost from Symantec, DriveWorks of V Communications, Acronis True Image by Acronis is the utility worthwhile backup system, you can use any software or any custom CD of their habits.Note that the system restore partition from image files will delete and overwrite all data in the partition. If not careful, be very difficult to save data in case the wrong partition to be restored. In addition, readers should also regularly make backups of personal data. Because of the importance of personal data, required to separate the backup system and personal data. Refer a backup in some way and A0611_146 www.pcworld.com.vn/A0901_116.

Backup drivers
Find and install the hardware device driver (driver) compatible with the OS are used to "consume" a lot of time having to reinstall the OS. Free utility Double Driver 4.1 (find.pcworld.com/70141) help the driver back up all system quickly and easily. After installation, select the Scan utility to scan your system and list the installed driver, click the hardware device driver to store or select "check all" to select all.

An entire system of
"Prevention is better than cure", has many articles to introduce readers to "guard" can best protect your computer against security threats, from the anti- virus free, no fees until the security suite with all the features anti-virus, spyware, spam, firewall (see more at pcworld.com.vn/A1101_68 and A1103_102). Many people believe that the system is safer, better protected if installed several anti-virus software. However, too much protection this would not be good because the dispute occurs between the software when they took control of the system. Besides, they also take up memory and significantly affect system performance. If you use Windows 7, readers can take advantage of existing security features such as user control features UAC. Firewall "two dimensional" Windows Firewall control more effectively the flow of data comes out and goes into the computer. Windows Defender or Microsoft Security Essentials, download at microsoft.com / security_essentials, security toolkit with Microsoft's free anti-spyware capabilities combined with good security features of Web browsers such as anti-phishing phishing , eliminate pop-up windows while surfing the web.

Ubuntu Linux
Ubuntu is a free open source OS based on Linux kernel. Although not comparable in popularity but in terms of friendliness, simplicity and ease of use for users, Ubuntu is not bad Windows. You can refer to "12 reasons to try it Ubuntu 10.10" (www.pcworld.com.vn/T1221578). A significant advantage is that Ubuntu (and Linux in general) is not targeted to the virus, malware. Thus, in addition to using Ubuntu alongside Windows, you read also in the hands of a powerful tool to test the system crash.

First you need to download the image file in Ubuntu 10.10 www.ubuntu.com / desktop / get-ubuntu / download.Unzip the downloaded file using a utility to create, edit image files (. Iso) as IsoBuster, UltraISO and then launch the file wubi.exe to install. The installation is simple, you just limit the installation partition options of hard drive space, set up user accounts and click Install. Reboot after installation, Windows Boot Manager will have the option to boot Ubuntu. Next, install anti-virus software is compatible with Ubuntu as ClamAV. On the interface screen, select Applications. Ubuntu Software Center. Click to select Edit. Software Sources and select "Downloadable from the Internet", you should check the option before the fourth item and click Close. Back to Ubuntu Software Center window, select Accessories, typing keywords into the search ClamTK. In listing the anti-virus software, click More Info to verify the information or click Install to install. In case of Windows viruses, malware. Start the system with Ubuntu, select Applications. Accessories. Virus Scanner to check. Reference: PC World 5 / 2011, PC World Vietnam