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How many machines can I install a single copy of Microsoft Office on?

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Summary: Depending on the situation, the number of machines you can install a single copy of Microsoft Office on is unclear.

I wanted to know if we're allowed to use a legal copy of Microsoft Word (legally meaning I purchased the disk) on more than one computer. I switched computers and now I need to install it on a different computer than the one I'd been using before. The old computer is still active. Can I re-install on my new computer? Will it recognize and allow me to use the product key?

If you're moving from one computer to another, the answer is easy. But if you're adding an installation, the answer isn't quite as clear.

If you're moving your installation of Office (or Windows, or pretty much any licensed software package) from one machine to another, the answer is simply "yes". That means you plan to stop using the package on the old machine, and start using it on the new. No problems, no conflicts, and no questions. About the worst this scenario might get is with over-aggressive anti piracy techniques that might require you to contact the software's manufacturer to verify that you're moving, and not copying, the installation in order for its activation to succeed.

On the surface, copying is also simple: it's illegal. Regardless of whether the application can be installed on another machine, and whether or not it works, most software license are "single seat"; meaning that you're allowed to have the software installed on only one machine at a time.

In practice things get just a little grayer than that, though. Some software publishers have license agreements that state you may install on a certain number of machines as long as only one is in use at any time. Others allow you to make a single copy of the software as a backup.

For Microsoft Office specifically, I was lead to believe some time ago that one could install it on up to three machines for personal use. Today I must assume that's wrong, as I can find no documentation to back that up.

"On the surface, copying is simple: it's illegal."

There are plenty of options besides purchasing an additional copy of Office, especially if you can't justify the additional cost. Consider:

  • Purchasing just the program (Word, Excel, etc.) you need, rather than the entire package.

  • Check out eBay, not only for bargains, but also for new copies of older versions of Office which are often found at a steep discount. You may not need all the latest and greatest features, so why pay for them?

  • Open source alternatives such as Open Office. Besides being free, the software is compatible with current Microsoft products, and quite good.

Related:

More articles about: Microsoft Office

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Article 473 | Posted November 1, 2004

Recent Comments

Is there a way to check the number of times software has been installed before installing it?

Posted by: Mel at July 14, 2007 07:09 PM

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Not that I'm aware of, no.

Leo


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Posted by: Leo A. Notenboom at July 15, 2007 03:54 PM

looks like a copy on your desktop & also putting it on your laptop is perfectly ok according to the terms here - this is directly from the ms site

http://www.microsoft.com/downloads/details.aspx?FamilyId=4285D6F7-DFDD-44A6-A21D-8E9899082B15&displaylang=en

1. RETAIL LICENSE TERMS
These license terms are an agreement between Microsoft Corporation (or based on where you live, one of its affiliates) and you. Please read them. They apply to the software that accompanies these license terms, which includes the media on which you received it, if any. The terms also apply to any Microsoft
· updates,
· supplements,
· Internet-based services, and
· support services
for this software, unless other terms accompany those items. If so, those terms apply.
BY USING THE SOFTWARE, YOU ACCEPT THESE TERMS. IF YOU DO NOT ACCEPT THEM, DO NOT USE THE SOFTWARE. INSTEAD, RETURN IT TO THE RETAILER FOR A REFUND OR CREDIT. If you cannot obtain a refund there, contact Microsoft or the Microsoft affiliate serving your country for information about Microsoft’s refund policies. See www.microsoft.com/worldwide. In the United States and Canada, call (800) MICROSOFT or see www.microsoft.com/info/nareturns.htm.
AS DESCRIBED BELOW, USING THE SOFTWARE ALSO OPERATES AS YOUR CONSENT TO THE TRANSMISSION OF CERTAIN COMPUTER INFORMATION DURING ACTIVATION, VALIDATION AND FOR INTERNET-BASED SERVICES.
IF YOU COMPLY WITH THESE LICENSE TERMS, YOU HAVE THE RIGHTS BELOW FOR EACH LICENSE YOU ACQUIRE.
1. OVERVIEW. These license terms permit installation and use of one copy of the software on one device, along with other rights, all as described below.
2. INSTALLATION AND USE RIGHTS. Before you use the software under a license, you must assign that license to one device. That device is the “licensed device.” A hardware partition or blade is considered to be a separate device.
a. Licensed Device. You may install and use one copy of the software on the licensed device.
b. Portable Device. You may install another copy on a portable device for use by the single primary user of the licensed device.

Posted by: rin at July 17, 2007 11:53 AM

This article from Microsoft should clear things up regarding Office Products: http://office.microsoft.com/en-us/products/HA102333141033.aspx?pid=CL100796341033

Posted by: Michael at July 25, 2007 06:58 AM

If the link doesn't work, go to: http://office.microsoft.com and search for the article, "Frequently asked questions about Microsoft Office Retail Licensing". You should see it about half-way down the page.

Posted by: Michael at July 25, 2007 07:05 AM

I too was wondering about this as I recently purchased a laptop, Office 2007 and McAfee for my college-bound son. I am ready to purchase the same laptop again for our home use because it was a great deal but did not want to buy the other add ons again. And on the back of the Office 2007 box, it does state it is licensed for up to 3 PC's. (The McAfee allows it too).

Posted by: Jane Adams at July 30, 2007 11:50 AM

ps...that would be Office Home and Student 2007 in case it matters to anyone

Posted by: Jane Adams at July 30, 2007 11:53 AM

It depends on the license and how you bought Office.

If you bought Office pre-installed on a PC, then it is OEM, and cannot be transferred to a new PC, even if you are scrapping the old PC (same with Windows). The OEM license is tied to the machine and "dies" when it dies.

If you bought a retail box, then you can install on a desktop and also a laptop as long as you are the only user of the software. If you bought the "home and student" license, you can install on up to 3PCs for home use only (ie not for any commerical use). If you get a new PC and remove Office from the old one, then you can take you license for office with you (unlike OEM).

Lastly, if your work as a "home use program" with Microsoft, you can get Office for practically nil, but you can only install it on one machine at your home for as long as you are an employee of the company with the "home use program" arrangement with Microsoft.

Posted by: Mike at August 12, 2007 02:55 PM

I recently received a replacement laptop due to mine having issues, do I have to take extra steps to unistall on old computer to be able to enter key on new computer? I'm running vista and want the office student on new comp. I have used 3 times related to reformating, desktop and laptop?

Posted by: Jeni at September 25, 2007 05:21 AM

I bought office 2007 and installed it onto my laptop. The terms of the licensing agreement state that the software can be installed on a portable device and a desktop, and the machine which the software is first installed onto is the licensed machine (my laptop). Is it legal to now install office onto my desktop PC?

Cheers

Posted by: Mr Irving at April 9, 2008 09:34 AM

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