Clean 1903 (Pro 64-bit) install - How much diskspace should it use?

mingle · 11 Jun 2019

Hi Guys,

I tried again with the in-place upgrade, but still kept getting the reserved space - the install popped-up a few extra steps that weren't shown in the tutorial listed, above.

So I went back to a clean 1903 - I guess I'll have to wait until a guru figures out a way to turn it off.

However, I did notice that after I'd got my 1903 install fully configured (all metro apps and Windows app-store GONE and all my programs installed), and I used Acronis True Image to create an image backup, the resultant .TIB backup file was around 2GB smaller than a clean 1809 install (same programs and config).

So it looks like the reserved space doesn't actually cause much of an issue.

Cheers,

Mike.

Polo6RGTI · 11 Jun 2019

@mingle

You can set the Reserved storage to be disabled by default by applying the registry tweak to the offline install.wim.

Code:

dism /Mount-Image /ImageFile:C:\OFFLINE\install.wim /Name:"Windows 10 Pro" /MountDir:C:\OFFLINE\mount

reg load HKLM\OFFLINE C:\OFFLINE\mount\Windows\System32\Config\Software

reg add "HKEY_LOCAL_MACHINE\OFFLINE\Microsoft\Windows\CurrentVersion\ReserveManager" /v ShippedWithReserves /t REG_DWORD /d 0 /f

reg unload HKLM\OFFLINE

dism /Unmount-Image /MountDir:C:\OFFLINE\mount /Commit /CheckIntegrity