Virtual memory, also known as a Page file, adds to the physical RAM by using disk space. However, moving the page file to a secondary SSD can help free up space if you run out of space on the primary.
While browsing the r/Windows10 subreddit, I remember someone asking if virtual hard disks (VHDs) offered free and additional storage. It gave me a chuckle (if only it worked that way!), but honestly, ...