Fix: Can’t upgrade to the latest Windows 10 version

By: Ujjwal Kumar
3 minute read

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  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

No software is ever perfect – writing a piece of code is complicated enough but when thousands of people write thousands of different parts of a piece of software, things are bound to go wrong. There is no way to avoid this though – and so we get bugs and failures that could have been avoided if the program was written by a perfect being.

Windows 10 is a superb upgrade over Windows 8 – it solves many of the problems introduced with the new framework Microsoft built in Windows 8 and brings back the most loved features from Windows 7. It is however not a perfect operating system, and sometimes things can go wrong or cause problems.

This problem though is not even in Windows 10 – it is in the Upgrade Tool, something that Microsoft built to let users easily upgrade to the latest and greatest operating system with ease and a few clicks. There are various reasons why you might be unable to upgrade to Windows 10, and we are going to cover some of them with a solution but know that there is no way to know the exact issue unless you have an exact error code.

Turning on DEP

Turning on Data Execution Policy is something you need to do from your BIOS – you will have to follow your motherboard’s guide for this, or simply google the instructions for it. However, there is an option for it in Windows as well – and you might need to enable it there along with BIOS, and this is how you do it.

  1. Open the Start Menu and search for “performance” the top result should be “Adjust the appearance and performance of Windows”, click on that.Screenshot_23
  2. Now open the Data Execution Prevention tab and click on “Turn DEP on for all programs and services except those I select”.Screenshot_24
  3. Click OK and restart your PC, and make an attempt at upgrading your Windows once more.

If turning on DEP doesn’t help you, try unplugging all the different USB devices you have and only keep the essentials – then attempt an upgrade. This should remove any false positives that you might have in terms of incompatible hardware.

Clean your install partition

The Windows upgrade process usually requires a lot of spare hard disk space to write its files in – 20 GB is where people consider it to be safe and sound. It can get quite hard to get that much free space on your install drive though, since your current operating system likes to save most of its files on there and that can be problematic. What you can try is the Disk Cleanup tool. Here’s the instructions:


For various PC problems, we recommend this tool.

This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

  1. Open the “This PC” or “My Computer” window – you should be able to find this in the Start Menu or even your Desktop.Screenshot_25
  2. Right click on your C: Drive and click on “Properties”, under the General tab you will see the option for Disk Cleanup – click on it and wait for it to do its work.Screenshot_26
  3. Once opened, you should see an option that says “Clean up system files” with a shield icon next to it. Click on that and give it administrative privileges.Screenshot_27
  4. After waiting a minute for the rescan, simply go through the list of files it is going to clean up just to make sure you are not deleting anything necessary and finally clean up the disk.Screenshot_28

This process should clean up at least a few GB’s off your Windows installation drive and might give you just what you need for the upgrade process.

There are various reasons why the upgrade process could fail – and usually there is no way to find out the exact reason for it, all we can do is give some solutions a shot and hope for the best.

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For various PC problems, we recommend this tool.

This software will repair common computer errors, protect you from file loss, malware, hardware failure and optimize your PC for maximum performance. Fix PC issues now in 3 easy steps:

  1. Download this PC Repair Tool rated "Excellent" on TrustPilot.com.
  2. Click “Start Scan” to find Windows issues that could be causing PC problems.
  3. Click “Repair All” to fix all issues with Patended Technologies (requires upgrade).

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