Software⏱️ 3 min read📅 2026-06-15

How to Fix: Error when resizing partition

Resize partition without reinstalling Windows.

Quick Answer: Use the built-in Disk Management tool in Windows 8.1 to shrink and extend Partition 2, then use the same tool to add space to Partition 3.

Error when resizing partition: This issue affects users who need to resize their partitions but are unable to do so due to insufficient space or other technical limitations. It can be frustrating for those who require more disk space and want to avoid reinstalling Windows.

The goal of this troubleshooting guide is to help users overcome the error and successfully resize their partitions without losing important files or reinstalling Windows.

🔍 Why This Happens

  • The primary cause of this issue is insufficient free space in the target partition. When trying to shrink a volume, Windows may not have enough space to allocate to the new partition, resulting in an 'I do not have enough space for this partition' error.
  • Another possible cause could be issues with disk access or permissions, which may prevent the operating system from accessing certain partitions or files.

✅ Best Solutions to Fix It

Using Windows Tool to Shrink Volume

  1. Step 1: Step 1: Open Disk Management in Windows 8.1 by pressing Win + R, typing 'diskmgmt.msc', and pressing Enter.
  2. Step 2: Step 2: Locate the partition you want to shrink (Partition 2) and right-click on it to select 'Shrink Volume'.

Using Partition Manager 15

  1. Step 1: Step 1: Open Partition Manager 15 by running the executable file and following the on-screen instructions.
  2. Step 2: Step 2: Select the partition you want to shrink (Partition 2) and click 'Shrink Volume'.

🎯 Final Words

To successfully resize your partition without losing important files or reinstalling Windows, try using the Windows Tool to Shrink Volume first. If that fails, attempt using Partition Manager 15 and restart the computer after accessing the drive deeply. Remember to always back up important files before attempting any disk-related operations.

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