Of course, those who work in the computer field and those who are good at the computer, is called frequently by friends or relatives when they have problems on their PC.
For example, in these days, a friend asked me for help because on his computer appeared the disturbing message ” operating system not found.
His is a relatively new portable PC with Windows 7 above.
In this article, we try to make a great guide as complete as possible (even if synthetic) to show how you can avoid paying a professional technician to repair your computer when it does not it goes more or if it does not work properly .
The only requirement is a certain amount of time, necessary to investigate the causes of the problem and, possibly, make the necessary interventions or, at least, to go to the technician with something in hand.
Even if you were not able to repair the computer yourself, it is important to understand what is causing the problem.
The speech is similar to when you take the car from the mechanic, with the difference that a computer works much easier and it is easier to understand what is wrong.
In general, those who go to the technician to repair the computer have the following problems :
He does not have time to do it alone;
It does not have the original Windows DVD to reinstall the system;
Even if it has the installation DVD, it does not use it for fear of losing all data, photos and documents.
He needs to replace a piece of hardware, but he’s worried about doing it himself.
We spend two words in favor of honest technicians.
When you bring a computer to assistance, if the user has no idea about the cause of the problem, he needs time to investigate.
Some technicians are good at immediately identifying the problem, while others will simply replace a few pieces or reinstall the system.
When you bring the pc in assistance do not necessarily have to leave it for repairs, you can also just ask for advice (even paid) so you know what’s wrong and how to put it on (then go home and read Navigaweb).
When a computer is broken, the problem can be of 5 types :
1) It does not turn on anymore
If you do not turn on your own, the problem is necessarily tied to the power supply that is not an easy piece to replace yourself, but that costs very little repair it.
In another article we have seen how to change the power supply of the computer , but if it is complicated, you can easily go to a technician who, for this problem, should take a little time and ask for a fairly low rate.
2) It starts but gives error before the writing appears Windows: This is the case of the example seen at the beginning of the article.
If Windows does not load its own, the problem can be abroken hard disk or damaged RAM memory .
To check the RAM memory has no problems, you can download a tool called Memtest that must be burned to a disk and loaded by starting the PC from the CD player.
Compared to the power supply, RAM and Hard Disk are parts of a computer quite simple to replace.
For more details on these do-it-yourself repairs , I refer to the guide to add RAM and drive to install a second internal hard drive .
While the change of RAM does not give any inconvenience, in replacing the hard disk you have to think about the data inside it that, probably, you want to recover (if you do not have a backup on another internal or external disk).
The trick is to mount the new SATA hard disk just bought, without removing the broken one that needs to become secondary.
The best solution however is to install Windows 7 or Windows 8 on the new hard disk and then use the old disk as secondary and transfer the data.
Keep in mind that the broken hard disk may cause computer crashes and blue screen errors.
3) Windows loads correctly, but you can not do anything and everything seems stuck
In this case, in 95% of cases, the fault is a virus .
Even in the event that missing file errors or denied permissions appear, the cause can always be a virus.
On this subject I can easily refer to other very precise guides:
How to recognize if the computer is infected with a virus .
What to do if the pc is hit by a virus .
Unless there are sensational cases, you can always remove a virus or malware yourself, using recovery CDs if your computer becomes unusable.
4) The computer works fine but turns off or reboots itself frequently .
This is the most difficult problem to identify because the causes may be different: the hard disk has some bad sector, the temperature control sensors do not work, the fans do not cool enough, the RAM is ruined, Windows has a virus and so on.
5) The computer is fine even if errors often appear and some programs do not start .
In these cases the problems are of a software type and always solvable.
They could be residual effects of badly treated viruses or problems caused by poor programs.
To repair your computer at home , what you need to have is the Windows 7 or Windows 8 installation DVD .
If you have Windows XP on your computer, then it’s time to change the operating system.
Always keep in mind that to use these operating systems you need a valid license (Windows 7 can be used for free for 30 days).
To reinstall Windows, simply copy the downloaded ISO to a DVD and start the PC from a DVD player by following the instructions and without formatting anything.
Windows 7 and 8 allow you to keep the previous data in a folder called Windows old so, in theory, it would not even require a prior backup.
On PCs that have a partition or recovery CD, it is possible to reset to factory settings which, in some cases, solves every problem if the hard disk is not damaged.
I hope that this summary guide on all the things to do to repair a computer can be useful, at least to get more information when taking a pc from a technician.
It may seem like a complex job, but I can assure you that in many cases you can save your computer with small operations and save a lot of money.
Returning to the history with which this guide began, the problem of my friend was part of typology 2, the computer turned on, without loading Windows.
To repair it, a new hard disk was enough and installed on Windows 7, whose license key was written in the sticker under the laptop.