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1 min read 5 stepsFebruary 14, 2026Verified February 2026

How to Manage Disk Partitions on Windows

Create, resize, and manage disk partitions using Windows Disk Management.

In this guide (5 steps):

1.Open Disk Management
2.Shrink a partition
3.Create a new partition
4.Extend a partition
5.Be careful with system partitions

Open Disk Management

~15s

Right-click the Start buttonDisk Management. You'll see all drives and partitions.

Shrink a partition

~15s

Right-click a partition → Shrink Volume. Enter the amount of space to free up.

Create a new partition

~15s

Right-click unallocated space → New Simple Volume. Follow the wizard to format and assign a drive letter.

Extend a partition

~15s

Right-click a partition → Extend Volume (only works if there's unallocated space directly after it).

Be careful with system partitions

~15s

Never delete or modify the System, Recovery, or EFI partitions — these are essential for Windows to boot.

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Official Resources

Microsoft Support How-To Geek — Windows GCFGlobal — Windows Basics

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