2004 Dell Optiplex GX280 running Windows XP Professional SP3

Update as of July 1, 2022: This PC is now considered unusable and I got rid of it, it suffered from bad capacitors, causing the PC to not boot up anymore, but only make a solid amber light and make loud fan noises. Many Optiplex GX280 systems are known for this problem. This is my 2004 Dell Optiplex GX280 running Windows XP Professional with Service Pack 3 x86. I got this PC yesterday for $10 at a Salvation Army. It used to have the original owners data and my mom told me to back up a journal entry that we happened to find on this PC. It was from a person who was born in 1925. After I backed up this 6 page journal entry for my mom, I reinstalled Windows XP Pro SP3 on this PC and now it works faster, it was slow before when I got it, but that's what you would suggest on an old PC.