What is the maximum amount of memory supported by my Windows operating system?

[#1]

Question

What is the maximum amount of memory supported by my Windows operating system?

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Answer

The maximum storage capacity can be found in the following two tables:

Version	X64 (64 Bit)	ARM64 (64 Bit)
Windows 11 Enterprise	6 TB	6 TB
Windows 11 Education	2 TB	2 TB
Windows 11 Pro for Workstations	6 TB	6 TB
Windows 11 Pro	2 TB	2 TB
Windows 11 Home	128 GB	128 GB

Version	X86 (32 Bit)	X64 (64 Bit)
Windows 10 Enterprise	4 GB	6 TB
Windows 10 Education	4 GB	2 TB
Windows 10 Pro	4 GB	2 TB
Windows 10 Home	4 GB	128 GB
Windows 8/8.1 Enterprise	4 GB	512 GB
Windows 8/8.1 Professional	4 GB	512 GB
Windows 8/8.1	4 GB	128 GB
Windows 7 Ultimate	4 GB	192 GB
Windows 7 Enterprise	4 GB	192 GB
Windows 7 Professional	4 GB	192 GB
Windows 7 Home Premium	4 GB	16 GB
Windows 7 Home Basic	4 GB	8 GB
Windows Vista Ultimate	4 GB	128 GB
Windows Vista Enterprise	4 GB	128 GB
Windows Vista Business	4 GB	128 GB
Windows Home Premium	4 GB	16 GB
Windows Home Basic	4 GB	8 GB

⚠️Note⚠️ The actual usable memory is also determined by the installed hardware.

Information on other Windows operating systems can be found on this Microsoft page.

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The information in this article refers to:

• Devices with Windows operating system

ChangeLog:

• 2024-07-08
  Initial version

Article in other languages:

• Deutsch

Review Date: 2025-01-08