Enhancing Your Computer’s Performance: Tips for Maximizing Primary Drive Space on Windows 11

In this digital age, an overloaded primary drive can lead to a sluggish computer performance, especially after upgrading to or installing Windows 11. It’s crucial to address this issue to maintain efficiency. This guide will walk you through practical methods to free up space and optimize your PC’s performance.

Clear Out the Windows.old Folder

Following a Windows 11 upgrade, the Windows.old folder, a backup of your previous Windows installation, may consume a significant amount of space. Purging this folder is a smart move to reclaim disk space:

  • Open the Start menu, type “Disk Cleanup” in the search box, and launch the utility.
  • Select the C: drive from the list and hit OK.
  • Press the “Clean up system files” button, re-select the C: drive, then tick the box for “Previous Windows installation(s)”.
  • Confirm your choice and allow Disk Cleanup to remove the Windows.old folder.

Eradicate Redundant Files with Efficient Tools

Accumulating unnecessary files over time is common, but they can be swiftly removed with dedicated software. For instance, EaseUS CleanGenius is well-regarded for its effectiveness in cleaning out digital clutter. Initiate a cleanup as follows:

  • Download and install EaseUS CleanGenius, then hit the ‘Scan’ button.
  • Select categories such as system junk to purge.
  • Execute the clean command and allow the application to streamline your system.

Strategically Expand Your C Drive

Adjusting your partition sizes can reallocate unused space to where it’s needed. EaseUS Partition Master offers an “Allocate Space” feature to enhance your C drive:

  • In the software, pick a partition with plenty of space and click “Allocate Space”.
  • Direct the added space towards your C drive by adjusting the partition size, then confirm with OK.
  • Finalize the process by selecting “Execute Operation” and then “Apply”.

Optimize Disk Capacity by Resizing Partitions

The ‘Resize/Move’ tool in EaseUS Partition Master can aid in modifying partition sizes to boost your C drive’s capacity:

  • Right-click on a partition that is not the C: drive and choose “Resize/Move”.
  • Shrink the partition by dragging its edge to carve out unallocated space for the C: drive.
  • Hit OK to set these changes in motion.

Combine Partitions to Enlarge the C Drive

Converging multiple partitions into a larger C drive can be the answer to accommodating Windows 11’s updates. Utilize EaseUS Partition Master for smooth merging:

  • Click on a non-C drive partition and select “Resize/Move”.
  • Adjust the partition boundaries to integrate unallocated space into your desired partition, then click OK to proceed.
  • To increase the size even more, reallocate space from a large partition to the target partition through “Allocate space”, and execute the changes.


These strategies aim to alleviate the common annoyance of low disk space. If you find your primary drive on Windows 11 is consistently reaching its limits, applying the above solutions can provide substantial relief. Share these insights with friends or colleagues who might be facing similar storage woes in Windows 11.

Frequently Asked Questions

Can I manually delete the Windows.old folder without using Disk Cleanup?

Manually removing the Windows.old folder is possible, but it’s safer to utilize Disk Cleanup or an application like EaseUS CleanGenius, which can prevent potential errors and ensure proper disposal of the folder.

Is it feasible to augment the space of the C drive without adding a new hard disk?

Absolutely, by reallocating unallocated space from other partitions or resizing your partitions with a tool like EaseUS Partition Master, you can effectively increase your C drive’s capacity without the need for additional hardware.

Editorial Staff
Editorial Staffhttps://www.bollyinside.com
The Bollyinside editorial staff is made up of tech experts with more than 10 years of experience Led by Sumit Chauhan. We started in 2014 and now Bollyinside is a leading tech resource, offering everything from product reviews and tech guides to marketing tips. Think of us as your go-to tech encyclopedia!


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