Step by Step: A) Right click on the ‘Start’ button and click on ‘Disk Management’.
B) Right click on the partition that has Windows 7 or 8.1 installed on it and select the ‘Delete Volume’ option. Please note that your partition arrangements and sizes may vary from the example shown below.
Click ‘Yes’. Note: This assumes you have already backed up any data files / documents you want to keep.
C) Depending on how your drive was formatted (Master boot Record or GPT) you may also need to delete the partition.
D) You now have reclaimed the space you originally created (by shrinking the Windows 10 partition) for use by Windows 7 or 8.1, the reclaimed space can be added back to the Windows 10 partition as follows.
E) Right click on the C: Windows 10 partition and select the ‘Extend Volume’ option.
F) The default is to extend the Windows 10 partition to consume all the “Unallocated” space, so no action is required on your part except to click ‘Next’.
G) When the ‘Extend Volume Wizard’ is ready to complete the process you will see the Windows displayed below. Click ‘Finish’ to complete the process.
H) Your Windows 10 partition should now be back to its original size (the size it was before shrinking it to make space for Windows 7 / 8.1).
I) Those data files and documents you copied to your USB Flash drive can be copied over to the appropriate folders in Windows 10.
Return to page 1: Uninstalling Windows 7 or Windows 8.1 ----->>>
How to dual boot Windows 10 and Windows 7 ----->>> You have upgraded or performed a clean install of Windows 10 and find that you need Windows 7 for some of your applications. Here is how you can reinstall Windows 7 (or 8.1) and still keep Windows 10. Back to the Dual Boot Korner -----> Home page ----->