Your question seems a little incomplete, but the basic answer is yes. Windows 7 64-bit will run on pretty much any modern day CPU including Pentium Core 2 Duo, Duo Core, Quad Core, Extreme, i3, i5, i7 processors as well as the AMD Athlon series of processors. If by "CPU" you mean computer, more details about the system might be required including hard drive space and RAM.
It's my understanding that there are TWO different versions of Windows 7 --one for 32bit processors, and another for 64bit processors. The package should specify.. my package states 64bit on the label (and my computer has 64bit processor). If you have the wrong version (i.e. 32bit) Microsoft might exchange it. If a 32bit version of Windows ran on a 64bit processor at all, it would probably perform poorly. I know in my 64bit copy of Windows 7, for some reason, Internet Explorer has both a 32bit AND 64bit version, and they both run. (I'm running Windows 7 on a Mac Computer in Apple's "Bootcamp" Partition)
It depends on your cpu. Open Performance Information and Tools by clicking the Start button , and then clicking Control Panel. In the search box, type Performance Information and Tools, and then, in the list of results, click Performance Information and Tools.
2. Do one of the following: * In Windows 7, click View and print detailed performance and system information.
* In Windows Vista, click View and print details.
3. In the System section, you can see what type of operating system you're currently running under System type, and whether or not you can run a 64-bit version of Windows under 64-bit capable. (If your computer is already running a 64-bit version of Windows, you won't see the 64-bit capable listing.)
To see whether a computer running Windows XP is capable of running a 64-bit version of Windows, do the following:
1. Click Start.
2. Right-click My Computer, and then click Properties. * If "x64 Edition" is listed under System, your processor is capable of running a 64-bit version of Windows.
* If you don't see "x64 Edition" listed, your processor still might be capable of running a 64-bit version of Windows. To find out for sure, download and run the free Windows 7 Upgrade Advisor from the Windows 7 Upgrade