How many cpus can you install an OS on? Tags: Windows 7 CPUs Last response: December 31, 2013 8:47 PM in Windows 7 Share Protectereli December 31, 2013 8:32:55 PM Building a new rig, bought everything going to have it put together now, question is, can i use my windows 7 install disc? (ive used it on my old build about 3 times) or do I have to buy an entire new disc? More about : cpus install neieus a b $ Windows 7 a b à CPUs December 31, 2013 8:47:23 PM You can use the same disc. You may not even need to reactivate but if you do there is a number you can dial to do it over the phone. m 0 l Can't find your answer ? Ask ! Publish Related resources SolvedIs there a limit to how many OS's I can install? Forum 2gb ram how many os can i install Forum SolvedHow many physical chips are inside dual core and quad core cpus? Forum Solvedhow many watts does this motherboard supports fir cpus? Forum SolvedMany BSOD's Since new RAM and OS Install Forum how come GPUs are made by many third parties, but CPUs are only made by the original designer? Forum SolvedHow many hdds can i install? Forum How many types of die yields the whole line of Ivy Bridge Core i3/i5/7 and Xeon E3/E5/E7 CPUs? Forum SolvedHow Many Fans Could I possibly Install Forum SolvedHow do I install OS on SSD with files on HDD? Forum Solvedhow to install windows 8 OS on sd that's not recognized? Forum SolvedHow many times can i install windows on my pc? Forum So many different I5 Haswell Desktop CPUs. How do I pick? Forum Solvedhow many cooling fan i can install on gigabyte h87 hd3 socket1150 ? Forum SolvedHow Can i install Mac OS on Lenovo Y50 (860M maxwell arch) Forum How many CPUS can fit in a motherboard? Forum tried changin my OS to win 7 ulti it wiped out all my drivers which one should i install thr are so many drivers in the site!! Forum SolvedHow to install OS on SSD with OS on HDD Forum SolvedBuilding a Gaming PC. I plan on getting Windows 8.1 for my OS. Need Help on how to install it Forum Solvedhow many HDD/SSD can I install on the Sabertooth Z87 mobo? Forum More resources Read discussions in other Windows 7 categories Configuration Customization Drivers Security Laptops !