In Thailand when you take the computers to repair. Some technicians normally format the hard drive and re-install the operating system software and other softwares; in the case that there is no problem with the hardware. This methord is easy, time-saving and convenience for them but it's not convenient for the computer's owner as they have to re-stall everything again as if they just buy the new computers. The technicians told me that in doing the repair business, they have to try to repair as many computers as possible at the modest price to have enough income to cover all the shop expenses and to have some profit. They know the better way to repair the computers to provide more convenience to the computers' owners but it does not work out for them in the business as it may take a couple of days to find out the real problem to fix one computer.
The method to repair the computer (not concerning the commercial) is to analyze from the problem of the computer such as the error message on the screen and the it's problem; this skill requires some experience.
If the problem is not from the hardware, the skilled repair person will analyze the problem from the error message, and can correct it within a few minutes or a few days. It 's not sure for each problem. He or she will use the last solution to re-install the operating system software and other software, only in the cases that he or she really cannot find out the problem, or it will take the tremendous time to repair, or the computer really need to re-install the operating software.
If the repair person analyzes that the problem is from the hardware problem, he or she will test the computer with the new hardware part to find out whether his or her analyzing is correct or not, if it is not correct, he or she will try another analyzing with another part of hardware.
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