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XP Pro # of machines I can use it on?

By powermac ·
I know this is a bit off topic but if anyone knows this I'd appreciate knowing for sure. I've heard every variation known to man & beast. Can I use XP Pro on all 3 of my PC's?

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by sgt_shultz In reply to XP Pro # of machines I ca ...

imho, no. it requires activation, a process by which microsoft keeps track of what hardware you have it installed on. changing the hardware enough or moving it from a machine will require reactivation.
windows 2000 is still steal-able, however. (rdl)

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by TheChas In reply to XP Pro # of machines I ca ...

You are allowed to install and activate XP Pro (or Home) on 1 PC per license.

To install XP on more than 1 PC, you need an additional license for each PC.

You can use 1 XP CD for all 3 systems.
But, you will need to buy an additional license for the second and third PCs.

Legally, per the End User License Agreement, you have always been restricted to 1 PC per operating system license. Even for MS DOS 3!

(This restriction is actually true for all commercial software, and most share-ware IF you read the details of the EULA.)

Windows XP is the first version of Windows to "enforce" the 1 PC per license restriction with product activation.

The corporate version of XP does not require activation. So, you can physically install XP onto multiple computers with the corporate edition.
However, legally, you are still limited to 1 PC per license.

Interestingly, the same restriction does not apply to MS Office.
The Student and Teacher Edition of Office 2003 allows you to install 1 copy on up to 3 PCs.

Other commercial software does allow you to install the program on more than 1 PC "IF" you NEVER use both PCs at the same time.


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by Oz_Media In reply to XP Pro # of machines I ca ...

Each machine must have a separate licence.

For home users many use the same disks, but if in a business use make sure all are individually licenced an audit would cost the company money.

The OEM CD key does not say for 1 to 2 PCs! It states that Pro can use 1-2
CPUs. This means that Pro can be installed on a PC that can have up to 2 processors.

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by Mr-Rich In reply to XP Pro # of machines I ca ...

Sure you can use it on all systems, just have to bypass the Activation (and it can be done). There are three different liscenses (or distributions) of Windows XP. Retail (including full and upgrade versions of Home Edition and Professional Edition) often referred to as "boxed", Volume (including Corporate and Open Liscenced versions), and OEM (non documented, non supported versions designed for preinstallation on new PC's). The WPA is designed differently for each type of liscense depending on it's allowed number of installations as set forth in each EULA . If you were to call Microsoft I am sure they will give you a license for each system for a reasonalbe fee.

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by dmiles In reply to XP Pro # of machines I ca ...

No, you are only allowed to install Windows XP software on one machine per license,you donot have the rights per Microsoft to install on more than one machine,read the software license agreement that came with the software and it will provide this info.

You can also check the Micrsosft web site and it will provide this info also

If you decide and try installing thesoftware on all machines you will get a message that the software is installed on another machine,and install will now be cancelled

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by wlbowers In reply to XP Pro # of machines I ca ...

"The primary user of the computer on which the SOFTWARE PRODUCT is installed may make a second copy for his or her exclusive use on a portable computer."

This is a direct quote from the Microsoft EULA that can be found here:


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