Forum Discussion
Storage Space for Windows Updates
Windows informs me that although the external USB drive has the capacity, I have insufficient space on my internal C: drive to initiate installing updates. 'Settings-System-Storage' shows 17.4 of 56...
Your observation is correct: the total size of the explicitly listed installed apps (under "Installed Apps" in Settings) is significantly less than the "Apps" storage usage figure (17.4 GB).