Can I use one microsoft office prof software disc that I purchased for 1 computer on a 2nd computer

I purchased a Office Professional software a couple of years ago for my computer. Now I have a second computer. Can I install the same disc to load the software on the 2nd computer or do I need to buy a second Microsoft Office Professional software disc?

No, you can use the same disk. You can use the same disk 3 times only. You can use that disk in any computer though. However you have to be sure that, that disk is suited to the windows on your new computer. I say this because you said you purcased the disk a few years ago. Do check if the windows.

Good luck. :]

Use open office instead - its free from openoffice.org