How much disk space shall be set for system partition of Windows 11

This article tells you how much disk space shall be set for system partition of Windows 11. Follow the tutorial, you will see the recommended disk space of system partition for Windows 11 installation.

Since Windows 11 is released, people want to install or upgrade Windows 11. But Windows 11 is a brand new system, and many people don’t know how much disk space is good to run Windows 11. Let’s see the specs of Windows 11.

Processor1 gigahertz (GHz) or faster with 2 or more cores on a compatible 64-bit processor or System on a Chip (SoC).
RAM4 gigabyte (GB).
Storage64 GB or larger storage device Note: See below under “More information on storage space to keep Windows 11 up-to-date” for more details.
System firmwareUEFI, Secure Boot capable.
TPMTrusted Platform Module (TPM) version 2.0.
Graphics cardCompatible with DirectX 12 or later with WDDM 2.0 driver.
DisplayHigh definition (720p) display that is greater than 9” diagonally, 8 bits per color channel.

We see that Windows 11 requires 64GB disk space, so, at least, your system partition for Windows 11 should be 64GB. But Windows 11 system files takes about 25GB, which means the rest space should be used for installing software, applications etc.

But there will be a problem if you upgrade to Windows 11 from Windows older versions. After a long time use of Windows, your system partition may only have 10GB free disk space, and when you want to upgrade to Windows 11, the problem comes.

First, you need to download the Windows 11 installation file through Windows Update, that file will be about 3.5GB. And then if you want to upgrade to Windows 11 from older versions, the upgrade process will automatically backup the previous Windows versions, and install Windows 11. Which means, the backup files will contain a whole Windows older version, which takes dozens GB of disk space.

So I recommend you to resize your system partition to 100GB at least for future use. You can check this article: How to resize partitions in Windows 11.

Maybe someone told you that you don’t need leave so big free disk space for system partition, you should install the software or applications in other partitions. By this way, you can save a lot of disk space.

No, this can’t save free disk space. You have to change the installing path for each software or application that you want to install. I always install software and applications in system partition, and one partition for documents, one for games, and one for backup. That’s a good habit to make things clear.

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