
Review Aomei Partition Assistant
Managing disk space without reinstalling Windows can be frustrating. This guide shows how to use AOMEI Partition Assistant to safely resize, move, or merge partitions, giving you immediate control over your storage.
Overview of this guide
After reading, you will be able to:
- Identify which partition needs adjustment.
- Resize or merge partitions without data loss.
- Apply changes and verify the new layout.
Designed for Windows 10 and 11 users who want a free, user‑friendly partition manager, this tutorial covers the core features of AOMEI Partition Assistant Standard Edition, including the graphical interface, the “Resize/Move” wizard, and the safety checks that prevent accidental data loss.
Before you start / Prerequisites
- Windows 10 or Windows 11 (64‑bit) with administrator privileges.
- Version 10.0.0 of AOMEI Partition Assistant (Standard Edition).
- At least 2 GB of free disk space on the drive to be resized.
- A recent backup of all important files.
- Stable internet connection for downloading the installer.
Step 1: Preparing the system
Check available free space
Open File Explorer and right‑click the drive you plan to modify. Select “Properties” and note the free space. If it’s below 2 GB, consider freeing space or expanding the partition from another drive.
Close background applications
Terminate nonessential programs, especially those that may lock files on the target partition. This reduces the risk of conflicts during resizing.
Step 2: Launching AOMEI Partition Assistant
Run as administrator
Right‑click the application icon and choose “Run as administrator.” The program will request elevation; accept the prompt to enable full disk access.
Locate the target partition
In the main window, you’ll see a visual map of all drives. Click the partition you wish to change to highlight it. The properties pane will display its size, file system, and free space.
Step 3: Resizing the partition
Open the Resize/Move wizard
Right‑click the highlighted partition and select “Resize/Move.” The wizard opens with a slider and numeric fields.
Adjust the size
Drag the slider or enter the desired new size in megabytes. The interface will show the resulting free space on the drive. Confirm that the target size does not exceed the available free space.
Preview the operation
Click “OK” to generate a preview. A dialog will show the steps the program will perform. Read this carefully; if anything looks incorrect, cancel and re‑adjust.
Step 4: Applying changes
Confirm and start
After reviewing the preview, click “Apply” in the main window. The program will lock the partition, perform the operation, and then unlock it.
Wait for completion
The status bar will indicate progress. Do not shut down the computer during this phase. Once the bar reaches 100 %, a completion message appears.
Step 5: Verifying the result
Check the new size
Right‑click the modified partition again and select “Properties.” Verify that the size matches the value you set.
Test access to data
Open the partition and confirm that all files are intact. If you encounter missing or corrupted files, restore from your backup.
Tips and common mistakes
- Always keep a recent backup before resizing.
- Do not attempt to resize the system partition while Windows is running; use the “Resize/Move” option from the boot menu if necessary.
- Ensure the free space is contiguous; otherwise, the wizard may not allow the resize.
- After applying changes, reboot the system to ensure the new layout is recognized.
- Use the “Check Disk” tool on the modified partition to verify integrity.
Use only legally obtained software.











