Assume there is a PC/system with 2 drives. One drive is Drive C, which is a fast SSD that has Windows 8.1 + all updates installed on it. The second one is Drive D, which is a slow HDD with a bunch of user data that needs preservation (no format!!!) and Windows 7 that needs updates. The slow Windows 7 HDD came from another computer. Is there a way to update that Windows 7 without having to boot from it? If so, then how??? Again, the HDD cannot be formatted. Please let meknow ASAP! THANKS!