Can I run Windows 7 and Windows 10 on the same computer?

I have a desktop machine that runs Windows 7.  I have a client who just bought a new machine that came with Windows 10.  I'd like to come to speed on Windows 10 so I can support them,  but I don't want to buy a new machine to get Windows 10. So can I put it on my current machine and boot into it, or maybe give it to a different user?

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NVITEnd-user supportCommented:
You need to buy a license. You can run it in a virtual machine (vm).
RaminTechnical AdvisorCommented:
So can I put it on my current machine and boot into it

Please explain more. put what ?
JohnBusiness Consultant (Owner)Commented:
You can use dual boot but that is old school. I agree with NVIT - use a virtual machine. I do this myself, and yes, you need a license.
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RaminTechnical AdvisorCommented:
if you are referring to the Hard Disk of that PC which contains Windows 10 then your answer is no.  that Windows is configured for that PC and with different hardwares on that PC and will not work on your PC.
stevaAuthor Commented:
The Windows 10 license seems to be about $40, so that's ok.

I know that servers run software that creates multiple VMs, but how do I create multiple VMs on my desktop machine?
JohnBusiness Consultant (Owner)Commented:
Use VMware Workstation or Hyper-V and you can create multiple virtual machines on your desktop host. I have a dozen or so. You need a license for each machine.
stevaAuthor Commented:
It look like VMware is about $250.  Add the cost of a Windows 10 license and I think I could buy a cheap laptop that comes with Windows 10.  That seems like a cleaner way to get on a Windows 10 system.
JohnBusiness Consultant (Owner)Commented:
Cheap laptops only last about a year which goes by quickly. I got a good Windows 10 laptop (a lot more than $250) and VMware (because I like it but Hyper-V is free on a good Windows 10 Pro 64-bit laptop). Then make Windows 7 a virtual machine for backward compatibility.

Windows 7 is running out of room, so you need to upgrade anyway.

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You could use the free version of VMware, or virtualbox from

If you worked with prior version of Windows, and Windows 8, I think you should ......... Access to the control panel, etc tools.....
stevaAuthor Commented:
Thanks!  Just curious: what breaks in a year on cheap laptop?
JohnBusiness Consultant (Owner)Commented:
Thanks., Cheap components. There is not a huge profit margin in computers, so good computers with 3 year warranty use good parts. What I see with cheaper consumer computers is that they have a 1 - 2 year lifespan and then power supplies and like start to fail.
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