Question How much space for Windows 11 compared to 10?

[Pimpom]

How much disk space is needed for a clean install of Windows 11 compared to Windows 10?

Please note that I'm not asking how big the OS drive should be. This is because installed programs and personal needs and preferences for any OS can vary widely from user to user.

So what I really need is some ballpark figure for what Win11 needs compared to Win10, like. for example, roughly 10% more.

 

[COLGeek]

Both use approximately the same amount of space ~ 20-25GB. This can be verified via multiple sources.

For example:
https://answers.microsoft.com/en-us...ver-time/abf92dc2-acab-45b6-b58b-2c15cbd76bd2

 

[USAFRet]

How much disk space is needed for a clean install of Windows 11 compared to Windows 10?

Please note that I'm not asking how big the OS drive should be. This is because installed programs and personal needs and preferences for any OS can vary widely from user to user.

So what I really need is some ballpark figure for what Win11 needs compared to Win10, like. for example, roughly 10% more.

Between 10 and 11, about the same.

But as time goes on, the C drive gathers extra stuff.
There is little benefit to having that drive or partition to be "small".

 

[Pimpom]

Thanks for the replies. I asked because most of the jumps from an older OS to a newer one used to involve a massive increase in size - from Windows 3.11 to 95, 98, Me, XP, 7 (I skipped Vista, 8 & 8.1) and to 10. Comparing the installer media for 10 and 11, the difference seems to be much less than with previous versions.

 

[USAFRet]

Thanks for the replies. I asked because most of the jumps from an older OS to a newer one used to involve a massive increase in size - from Windows 3.11 to 95, 98, Me, XP, 7 (I skipped Vista, 8 & 8.1) and to 10. Comparing the installer media for 10 and 11, the difference seems to be much less than with previous versions.

Correct.
A current base install of 10 or 11 is MUCH less difference than previous version changes.

And further, the base install of Win 10 of 2015/6 is different than the base install of Win 10 of 2024.