That's some increase is size there!While the enablement package is tiny, check the full ISO file size.
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Apparently 26h2 reduces the ram usage of the os by up to 2GB.
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Windows 11 26H2 Boosts App Launch Times, Reduces Memory Usage
Early tests suggest base Windows usage could be down by 2GB.uk.pcmag.com
If they binned their Electron crap then you could reduce it by a hell of a lot more than that!Apparently 26h2 reduces the ram usage of the os by up to 2GB.
That's some increase is size there!
I was surprised by the 8.4GB. This shows how the size has increased
Consumer
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Business
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Rewrite in RustIf they binned their Electron crap then you could reduce it by a hell of a lot more than that!
Ditto webview2 crap.

Thats what H1 is for... H2 is all of H1 bugs addressedI would always give a bit of time before updating to a new feature update.
Let others report the issues with it and get them ironed out before installing it but that's just me. You could install it and have no issues at all.
I've just ran Windows Upaates and not had this appear but this is normally gradually rolled out rather than given to everyone at aonce.