Create a backup of Windows OS and use it to restore Windows OS

Create a backup of Windows OS Partition and use it to restore Windows OS later.

With this you would not require to do fresh install Windows OS every-time. You will be able to restore Windows OS with all the updates installed.

Most of the steps i am telling is necessary.

The drive letter that i am using may change in your case.

Try to understand first what is happening here then try to do it yourself. It should be easy to do.

Video Demo


Install clean Windows OS . Install all the updates and dot net frameworks. Install some basic software’s.

You will need to install AOMEI Partition Assistant Standard Edition

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  • Install all Windows Updates

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  • Install additional Visual C++ redistributables

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  • Now you are ready to do Windows System Partition backup
  • Open AOMEI partition Assistant
  • Windows 8.1 is installed in C: drive
  • To do a copy operation we need free “unallocated space ” in primary hard disk . It is recommended to have 25 GB unallocated space or more . Notice C: drive is occupying 21.87 GB . Obviously we need  more than 21.87 GB unallocated space so that we are able to copy C: drive partition. 25 GB for unallocated space should be enough. You also need to check how much space is used in C: drive .


  • To get unallocated space in hard disk either you need to delete some existing partition or resize a existing partition to get 25 GB unallocated space. In my case i can resize D: drive which has 47.96 GB to get 25 GB space. Or i can delete a partition to get 25 GB


1) Resizing D: drive to get unallocated space

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About 25 GB unallocated space obtained


2) Or we can delete a partition to get unallocated space

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  • 24.5 GB unallocated space obtained


  • Now we need to copy C: drive to unallocated space
  • Right click on C: drive. Select “Copy Partition

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  • Select Unallocated space as destination Space

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  • Click “Finish” to start the copy operation

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  • Now all the files of C: drive is copied to F: drive named “Copy of C:

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  • you may change the label of F: drive. Here it is “Win 8.1 Pro Copy

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  • Now F: drive is a exact copy of C: drive
  • F: drive is the backup partition

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  • Now we need to add bootup entry. This is necessary step.
  • Start the CMD  “command prompt” as “Administrator

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  • Since the copied files are in F: drive, write command “bcdboot F:\Windows

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Again write command “bcdboot C:\Windows“. This time use only C: drive and nothing else

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  • You may want to hide this newly copied F: drive.
  • Right click on F: drive and select “Change Drive Letter

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  • Select “New drive letter” as “none
  • Click “OK

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  • Backup operation completed. The copied partition is exact copy of C: drive, so you can even boot into copied partition.

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  •  You can continue using windows OS in C: drive as normal. Install whatever you want.

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You will see two Windows OS bootup entries during startup. One is for Windows OS that you will use regularly and another one for backup/copied Windows OS.

If the operating system in C: drive gets corrupted or is working slow after using for along time, then you can do the recovery.

The backup created can be used to restore the C: drive using the files of F: drive


  • Now if you need to do the recovery then you need to boot into the copied operating system.
  • Install all the Microsoft windows updates.
  • Reboot.

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Start the CMD  “command prompt” as “Administrator

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Run command “bcdboot C:\Windows” .

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  • This time you can see that backup partition is called C: drive and main OS is G: drive

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  • Delete the G: drive

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  • Select the C: drive

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  • Select “Copy Partition”

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  • Select the “unallocated space” as destination space

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  • Notice that this destination partition needs to be “Primary partition“. So i am selecting “Create As” “Primary Partition
  • Also increase the “partition size” to maximum with zero “Unallocated space before” & “unallocated space after
  • Click “Finish” to start the operation

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  • Now all the files of C: drive has been copied to D: drive.

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  • You may want to change the label of D: drive

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  • D: drive partition label changed to “Win 8.1 Pro”

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  • Now we need to add entry in boot menu.
  • Start the CMD “command prompt” as “Administrator

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Run command “ bcdboot D:\Windows

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All done. Reboot

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