Now Kingsoft has office 2012 and free version is available. http://www.kingsoftstore.com/kingsoft-office-freeware.html. For a professional edition it is $69.95 to get a serial number or you may try 30 days for free.
I think you are asking for an upgrade from trial to professional. You may Download Kingsoft Office Suite 2010 for free.
Kingsoft Office was created in 1988.
Yes, Kingsoft Office is safe to download. I have personally used that app for about a year with no problems.
Go to the official website of Kingsoft Office, you will find the guide and more features.
There are quite a few free alternatives to Microsoft Office Suite available on the web today, offered by Kingsoft Office and OpenOffice among others.
Not going to get it unless its illegal. You can download it for free, but that won't be legal. So I won't give you the link or anything. Nor would I recommend you to do anything illegal. The above answer is right, you should use a free alternative like OpenOffice or Kingsoft Office, instead of Microsoft Office if you don't want to buy anything. And if you still want Microsoft Office for free, then why are you wasting your time here on Wiki answer, and not searching on Google?:) http://www.openoffice.com http://www.kingsoftstore.com/kingsoft-office-freeware.html
Now Kingsoft Presentation 2012 is available, and if you are familiar with the interface of MS Office 2007, you will find kingsoft 2012 quite easy to use. To create a ppt file, you can just create a new presentation from either blank or existing template, and add new slide by right click in the blank area in the left column. See more: http://www.kingsoftstore.com/presentation.html
If you are looking for a document editing app, you can try Google Drive (formerly Google Docs), Quickoffice (which is also owned by Google), Kingsoft Office, and Smart Office.
Softonic is one company in which you can download Microsoft Office 2003 for free. Kingsoft Office is another place to access the free download. There is even a video on YouTube that shows you how to obtain the free download.
Many free word processors are compatible with windows one such example is abiword fro mthe abisource website or the kingsoft writer free 2012 from kingsoft office. Alternatively the most commonly known word processing software compatible with windows would be Microsoft Word.
On the butt
Every copy of Microsoft Office has a unique serial number- If you try to register (or activate) another copy with a serial number that's already been registered, it will not work ! Microsoft (quite rightly) did this to stop people illegallydistributing copies of their software !
Office Suite 2012 can be downloaded for free from website of kingsoft, microsoft, cnet, and brothersoft. However, it is not 100% free and it is more a trial version. To have full version, one should pay some money.