swap dell hard drive to brand new dell computer

I want to take my hard drive from my dell vostro, and use it in a brand new dell optiplex instead of the hard drive that came with the optiplex.  How do I do that?  Right now when I try it I get an error at startup and it tries to repair itself.
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Shahnawaz AhmedTechnical Services SpecialistCommented:
YOu need to install OS in it as you changed the hardware from 1 laptop to another.
I guess you want to use it as primary disk? If so you will definitely get errors due to mismatched hardware. If you have windows 7 installation disk, you can try booting from it and repairing windows, by doing this you will be violating Microsoft licensing policy. If the OptiPlex you bought came with windows 7 you need to change product key to the one supplied with OptiPlex after repair. If it was sold with Windows 8 you need to request downgrade (only if new OS is pro version, http://www.microsoft.com/oem/en/licensing/sblicensing/pages/downgrade_rights.aspx#fbid=paLZ4iKS871)

I would suggest instead of using the old disk as primary, add it as secondary to access data, if you are worried about programs and settings you can use windows easy transfer from old machine to new and reinstall programs.

If the new computer is windows 8.1 you won't be able to use easy transfer program settings, it transfers only data.
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John HurstBusiness Consultant (Owner)Commented:
In addition to the two posts above (not a good idea to do what you are trying to do), presumably the new computer comes with a new Windows Operating System.

Start it up, update the drivers (ALL of them), Update Windows (there could be a lot of updates) and get it running in a stable fashion. Install your software and update and then move your data over.

For most people, software install can be done in a reasonable amount of time.
Since both computers are different one being a vostro and one being an OptiPlex they both have different hardware components, even though both computers are made by Dell.  It is because of these hardware differences windows requires different drivers in order to recognize the two different components in the systems. YOU CAN NOT just swap the drives and expect the computer to work. What is happening is the widows recognizes that the software installed on the two computers is different as a result windows is trying to repair itself as you mention and is trying to install the proper drivers for the components that are found in the new computer. If you have data on your old hard drive that you want to transfer to the OptiPlex computer you can use windows easy transfer (which is found on windows 7 computers), but you will have to be connected some how to the two computers. If the OptiPlex computer has an extra slot and extra cables (power cable and a sata cable) you can connect your old drive that way. Then use the windows transfer application to transfer your data and settings from the harddrive to the new harddrive in the optiplex pc. The Windows easy transfer program in windows 7 can be found by clicking on the start button, click all programs.... accessories.....  system tools..... the clck on Windows Easy transfer.....   Normally the windows easy transfer program is used when you either are using a usb easy transfer cable (has two usb ends that you connect to each computer), or you can do it over the network if both pcs are connected to the network, or you connect the hard drive from the old pc to a harddrive docking station, where you connect to the new computer via usb.
Follow the steps in the directions to transfer the data from one pc to another.
i want to add this :
-windows 7 is very good at installing missing drivers, so that would not be my first concern
-BUT -  you cannot move any OEM OS from one system to another, windows will not allow it, since it is tied to the PC; so you'll get activation, and windows is not legitime problems

may i ask why you want to do that?  maybe we can work out another solution
McKnifeConnect With a Mentor Commented:
Another evergreen problem.

You may transfer OEM software - if your are EU based.
To do it, look at this: http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Windows/Windows_7/Q_27247084.html#a36338721

I have done that transfer often, hundreds of times.
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TomBalla -it would help us if you post the error you get
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