Hi Barry,
To install Windows 11 24H2, your device needs at least 64 GB of free space on the system drive, which is the minimum requirement for both upgrades and clean installs. However, for smoother performance and future updates, it's recommended to have 100 GB or more available.
A clean installation typically uses around 27 GB at first, but this will grow over time as updates and apps accumulate. Since your Surface Go 2 only has 64 GB of internal storage, you can still proceed with the update, but you may need to take a few steps to make room. These include removing unused apps and files, using an external USB drive for temporary storage during the update, or enabling Compact OS mode to compress system files and save space. Hope this clarifies things up on your end,
Best,
Jeric.