One of our Technibble readers sent us an email and asked us at what point while repairing a computer do you decide it is time for a format? How do you determine wether you should keep spending more time trying to repair the system or just give up and wipe it clean? Heres our answer.

Scott Bates writes:

Thanks again for the [computer business] kit! It has worked out very well.. I am not sure if your interested in writing about this topic in a future article but I thought I would ask anyways. Here is the topic I had in mind.

1) Customer brings you a machine that is completely trashed with viruses, trojans, spyware etc..

2) I run AVG on the computer with a Ultimate Boot CD and it finds over 1400 infected files and then deletes, cleans, or quarantines them.

3) After the viruses are cleaned off I reboot the system back into windows and everything is fine, except for windows dll error messages, control panel will be missing, can’t access the system time, etc..

4) My question is how much time do you work on this machine before you just do a rebuild on it. My rule has been to never spend too much time because eventually you have to give it back to the customer to keep them happy. With all the virus stuff it just seems like most of the time when its that bad you just do a rebuild.

5) I wanted to know what kind of procedure you use for determining whether you try and fix the damage, or just reinstall from scratch and call it a day.

6) Also, I try and research and get removal tools etc.. but it seems like once enough windows system files are damaged, trashed, and your registry is screwed what else can you do but a rebuild?

Thanks!

Scott Bates

Well, Scott. You sound like you know what you are doing when attempting to repair a system. Thats probably what I would have done in the same situation. I usually try and attempt a repair before I consider a format because sometimes a format is just overkill.

Now, at what point do I go from trying to repair the system, to a format?
I usually ask myself this question after working on the system for one hour. If I havent gotten anywhere after that hour I’ll usually decide to do a format. If I am getting somewhere or it looks promising that I will be able to fix it after that hour, I’ll press on with the repair. If that repair doesnt succeed, I format.

Sometimes I can only spend a few minutes on a clients computer and decide it is time for a format. I will usually do this when multiple core Microsoft Windows files are damaged (the ones that come with Windows). There are times when there is only a small amount of the core-but-not-so-criticalk Windows files are damaged and they can easily be fixed by the sfc /scannow command.

I find the best way to decide whether to fix the core system files or to format is to ask yourself “Whats the chances of this issue being completely fixed? and will these errors cause a problem further down the track”. If the answer is that it may not be completely fixed and/or there may be problems down the track, time for a format.

You should do what is best for your customer, whichever is the most likely have the best result that is the most cost effective. For example, If I am having trouble repairing a operating system error and I am not sure whether I will be able to fix the problem – I would rather format the system instead of spending another two hours on the system and charging for it when may still have to perform a format anyway.

If you cant decide one way or the other, give the customer the choice of what to go with. I usually say something along the lines of:
“I can attempt a repair of the system which is cheaper. However, there is the possiblily of the problem coming back. A repair is like patching the holes in a boat hull as the problems appear Or; I can do a format which is like totally replacing the boat hull with a new one. A format is usually the better choice long term, but its a little more expensive. Also, its possible that I can spend an hour or two trying to repair the system only to determine that I will have still to format it anyway”
In most cases the client will choose the format and be happy with paying the little extra now for a guaranteed fix. This way it is also better for you because there is less of it coming back which will make you look bad, plus you make a little extra money.

If you have a question for us, drop us an email and we’ll be happy to answer them. To send us an email, you can use this form.