Note that the message appeared after there were some problems with the undeletable 8.63GB after the update. Chance? No way, you don’t exist!
That bug with 8.63GB has already been explained, so you shouldn’t be robbed of space (but who knows). But if you’re still struggling with space, developer NTDEV has been working on stripped-down versions of Windows 10 and 11 for a long time. They call them tiny10 and tiny11. It is a fully functional OS, but without annoying nonsense, unnecessary bloatware and trimmed by tens of GB. However, you can also prepare the entire installation ISO yourself using tiny11builder script (uses PowerShell). Why should you do this? Maybe because you don’t like how Windows keeps growing and eating up more and more space with each major update.
This is precisely what NTDEV focused on, and the last major Windows 11 24H2 update compressed it enough (using LZX compression, of course) that the ISO fits on one DVD with a capacity of 4.7GB (although I don’t remember the last time I saw and used a DVD). After installation, Windows is only 3.54GB! Usually clean Windows will eat tens of GB (20-30, maybe more) after installation. With the creation of your own ISO installer, you can win and create either a completely truncated, barely functional kernel, or just delete never-used applications, e.g. horror OneDrive or prehistoric Internet Explorer. Tuning!
Source: pctuning.cz
