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How to extend C drive or system partition in Windows 10?

Updated on Dec 04, 2018 by Tracy King to Partition Master

Summary:
The computer will warn you when the system C drive gets sull or is out of space. It's a common issue for Windows 10 users. So if you are a Windows 10 user and you need an effective method to extend C drive, try free partition manager - EaseUS Partition Master which can easily increase system partition size and resize/move/merge/split partition in all Windows systems.

When the C drive (system partition) is out of space, gets full or you get a low disk space warning, and hardware upgrades become unavailable shown as next image, what are you going to do? 

  • Windows 10 C drive is out of space:

Windows 10 C drive out of space

How to extend C drive or system partition in Windows 10? Follow tips below, you'll learn how to extend partition, especially to increase C drive in Windows 10. 

Tips to extend C drive in Windows 10

There are a few things you can do for extending the C drive or system partition. 

Tip
1. Move the print spooler and page file to another drive.
2. You can also merge other partition into C drive for more space.
3. Apply professional partition manager software with Cleanup and Optimization feature can also speed up your slow computer, clean up those junk files and repair Windows system.
This will save you a large amount of space on C drive and other partitions.

All these methods will allow you to free up a significant amount of space on your C drive.

For the users who want to extend C drive with a free and easy method, EaseUS Partition Master Free Edition is the right choice for you.

Let free partition manager software help

As magic partition software, EaseUS Partition Master Free Edition is a FREE comprehensive hard disk partition management software to let you enjoy free with all the powerful functions:

  1. 1. Extend system partition
  2. 2. Resize and Move partitions
  3. 3. Copy Partition/Disk
  4. 4. Create, Deleted and Format partitions
  5. 5. Hide and Unhide partitions and more... 

This freeware works perfectly with hardware even with RAID and supports all Windows Operating Systems. Your data is completely protected during all operations.

Download Now

 Windows 10 is supported

Moreover, beside the basic and advanced partition manager features, EaseUS Partition Master also provides powerful partition recovery wizard to recover deleted or lost partition, cleanup and optimization for optimizing hard disk and clean up disk space, wipe data to permanently erase hard drive/partition and so on.

TUTORIAL: Extend C drive or system partition in Windows 10 for Free

Step 1: Launch EaseUS Partition Master

Run EaseUS Partition Master

Step 2: Add space to the System C drive

1. Shrink partition and leave unallocated space for extending C: drive:

  1. Right-click on a partition next to the C: drive and select "Resize/Move".
  2. Drag either end of the partition to shrink and leave unallocated space behind the system C: drive and click "OK".

2. Right-click on the System C: drive and select "Resize/Move".

Extend System partition

To add space to the C: drive, drag the system partition end into unallocated space.

Add space to C drive

Step 3: Confirm to extend system C drive

Click the "Execute Operation" button, check all the operations waiting for pending, and click "Apply" to keep all changes so to extend C drive.

Confirm to extend system C drive
  1. The program may pop up a window to ask you to restart your computer after executing the operation, do as the software requires.
  2. Your computer will restart with a bigger system C drive and better computer performance on your Windows 10 PC.