AOMEI Partition Assistant
How to Get Rid of Storage Space Running Out on Windows PCs?
This guide will show you how to get rid of the "storage space running out" issue on Windows PCs. By applying these strategies, you can quickly free up space and prevent future storage alerts.
By Gia / Updated on April 22, 2025
"Storage Space Running Out" Notification on Windows
The “Storage Space Running Out” notification is a built-in alert in Windows that appears when a disk partition—usually the system C: drive—is nearing full capacity. When this warning pops up, it means your system is running low on available disk space, which can impact performance and functionality. Low disk space can lead to various problems, including:
- System slowdown
- Failure to install Windows updates
- Crashing apps
- Inability to save new data
If you’re seeing the “Storage Space Running Out” notification, don’t ignore it. Read on to learn practical solutions to free up space and restore your PC’s performance.
How to Get Rid of the "Storage Space Running Out" Notification?
Method 1: Clean Up Disk
One of the fastest ways to reclaim storage space is by cleaning up unnecessary files on your drive. Temporary files, cached data, recycle bin contents, and previous Windows installations can all take up a surprising amount of space. Here's how to stop storage space running out by removing unnecessary files:
Step 1. Right-click the running out of space drive (here is C:), select “Properties”.
Step 2. Then, it will show you the disk properties window, click the “Disk Cleanup”, and click "OK" to move on.
Step 3. It will show you another window where you can choose the files to delete, so that you can free up more space for the drive.
Step 4. Or you can click “Clean up system files” to clean up files created by Windows. And here you can click "More Options" to free up more disk space.
Step 5. Then, click "Delete" to execute the task.
Method 2: Extend Your C: Drive
If your C: drive is running low on space but you have unused or unallocated space elsewhere, you can extend the C: drive using it. AOMEI Partition Assistant is a powerful and user-friendly disk management tool that lets you extend, shrink, merge, move, or split partitions in Windows without data loss. It's ideal for users seeking a flexible way to manage disk space. If cleaning up doesn’t free enough space on C:, you can merge it with other partitions or unallocated space to expand its capacity.
- Key Features of AOMEI Partition Assistant:
- Resize partitions without losing data.
- Intuitive interface for easy disk management.
- Comprehensive tools to manage disks and partitions.
- Fully compatible with Windows 11, 10, 8/8.1, and 7.
100% SecureHere’s how to get rid of storage space running out by extending the C: drive:
Step 1. Install and run AOMEI Partition Assistant, right-click the C: drive, and select "Advanced" > "Merge Partitions".
Step 2. In the pop-up window, tick the C: partition and another partition (here is D:) or unallocated space. Then click "OK" to continue.
You can merge two adjacent partitions or combine unallocated space with an existing partition.
Step 3. Finally, click "Apply" and "Proceed" to execute the pending operation.
Step 4. Wait for the process to be finished. Once it is finished, you will find D: is merged into C: partition.
Method 3: Allocate Free Space to Your C: Drive
In some cases, you may find that the Merge Partitions option is grayed out, preventing you from merging partitions. Don’t worry—AOMEI Partition Assistant provides a convenient feature called Allocate Free Space, which lets you directly transfer free space from one partition to another without the need to shrink, delete, or manually move any partitions.
100% SecureFollow these steps to allocate free space to your C: drive from another partition:
Step 1. Install and run AOMEI Partition Assistant, right-click the partition from which you want to allocate free space (here is D:), and select "Allocate Free Space".
Step 2. In the pop-up window, type in the size of the free space which you want to cut from the D: partition, and this free space will be directly added to the C: drive. Then click “OK” to continue.
Step 3. To commit the "Pending Operations", please click "Apply" and "Proceed".
You can also tick "Check partitions before execution" to go through the partition in case of any error in it.
Step 4. Wait for the process to be finished. Once it is finished, you will find that C: is extended.
Conclusion
This guide shows you how to get rid of the “storage space running out” issue on Windows PCs. By taking proactive measures—such as cleaning up your disk, extending the C: drive, or reallocating free space—you can efficiently resolve low disk space problems. AOMEI Partition Assistant also offers advanced features like PC cleaning, OS migration to a new hard drive, transferring installed applications, and more. Download it to simplify and enhance your disk management experience.
FAQs
Q1: Why do I keep getting the storage space running out notification?
This usually means your system partition is nearly full due to accumulated files, apps, or insufficient initial space allocation.
Q2: How often should I clean up my disk?
It's a good idea to clean temporary and junk files at least once a month or enable Storage Sense for automatic cleanup.
Q3: Will cleaning up disk space delete my personal files?
No, as long as you avoid checking folders like Downloads or Desktop during cleanup. Please double-check selected items before cleaning.
