Product code for Windows
Product code for Windows
You might not need to do that at all. I’ve often been cautious about reinstalling my OS, testing efficiency of RAID setups, and had to reinstall Windows 7 multiple times across different drives. I never reached out to Microsoft; just entered the product key and enabled automatic activation online.
Discuss the official Windows 7 SP1 ISO image downloads thread on W7Forums.
To ensure the process works smoothly, try running it online instead of multiple times. If you receive an "invalid key" message, contact support using the provided number—either freephone or toll-free—and enter the details.