Reformat Problems

(if this is not the right place to put a question of this nature would someone please redirect me. Thank you)

I have an ACER Laptop. It was a faulty one that I fixed and it took me ages. I wanted to fix it and give it to my sister for her B.day because she can’t afford one.
It was working and I had been using it for a while to make sure that everything was functioning as it should. Apart from being a bit slow it all worked.
A tech told me that if I reformatted it that it would run faster.
I got out the disks and began.
When it got through the last disk it asks for disk 1 to be put back in to finish. I do this and it finishes, the disk pops out and I am asked to press enter to begin Windows.
I hit Enter and then the Windows window comes up, the blue line starts going from left to right as though the computer is going to start and then it goes to a black screen that says:

We apologize for the inconvenience, but windows did not start successfully. A recent hardware or software change might have caused this.

It asks me how I want to start the computer:

Safe Mode
Safe mode networking
safe mode with command prompt
Last know good configuration (your most recent settings that worked )
Start Windows Normally

It doesn’t matter which of these I attempt, the computer won’t load.

If I try to start it by selecting Safe Mode. I get a black window with safe mode in each corner and up the top of the window is: Microsoft (R) Windows XP (R) (Build 2600.xpsp.050928-1517: Service Pack 2).

The minute timer icon comes up and then a window appears with the red cross which states:
The system is not fully installed. Please run setup again.

I have run the reformat again but the same thing happens.

I worked hard on this computer and thought I was going to be able to give my sister the best present ever. She really does it hard and I was so please for so long knowing that the computer finally worked and that she would have it soon.

Can someone please help me out? What else can I do? I wish I had never listened to this guy. I should have left it how it was. It was running. It was just a little slow..

The discs are the right discs for this computer.

 

By any chance, do you have another windows disk you could try?

 

Is it the original CD that came with the system as some have custom windows CD's with the required drivers that can be very hard to find.

Whot i would try if not the original CD is to get nLite and add all the drivers i could find for that laptop.

Also check the ACER site if they have drivers for you. IF like DELL some yeaqrs ago you will have to login to see them.