How to resolve if Windows 10 Upgrade fails with 80240020

Sometimes Windows update service insists you to upgrade your older Windows version to Windows 10. After the prompting of the updating notification you go for the upgrading process, but suddenly you get “Windows 10 Upgrade fails with 80240020” on your computer screen. Due to corruption in the Windows registry entries or due to less memory space in your computer you can get this error issue. You should fix this issue to get rid of any data loss or system crashes. You can use some manual methods or use Advanced System Repair tool to fix the problem automatically.


Compatible with the Windows 8 32-bit and 64-bit Operating System, Windows 7 32-bit and 64-bit Operating System, Windows Vista 32-bit and 64-bit, Windows XP 32-bit
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Symptoms –

After the prompting of Windows 10 Upgrade fails with error code 80240020 on your computer you cannot be able to upgrade your Windows to Windows 10. Slow PC performance, system stuck at certain spot, screen freezing, blue screen of death error, automatic shutdown, starting problem, prompting of other error messages repeatedly, etc are some of the other symptoms.

Causes for Windows 10 Upgrade fails with 80240020 –

Main causes of the Windows 10 Upgrade fails with error code 80240020 are corrupt Windows registry entries, internet disconnection, insufficient memory space, improper way of installing Windows 10, misconfigured system files, missing DLL files, virus infection, installation or uninstalling of corrupt file of the Windows 10, etc.

How to fix Windows 10 Upgrade fails with 80240020

  1. Go to “C:\Windows\SoftwareDistribution\Download” and delete entire files.
  2. Click on start button and type command prompt and right click on it to run as administrator.
  3. Type “exe /updatenow” in the command prompt box and hit enter.
  4. Go to Control Panel > Windows Update.
  5. You will see that Windows 10 will start re-downloading.

With the help of the above manual steps you can easily upgrade your Windows 10 on the computer. You can also resolve the issue of Windows 10 Upgrade fails with 80240020 with the end of the manual method. In case the error is still coming then you should use Advanced System Repair tool to fix this issue automatically.


Compatible with the Windows 8 32-bit and 64-bit Operating System, Windows 7 32-bit and 64-bit Operating System, Windows Vista 32-bit and 64-bit, Windows XP 32-bit
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Advanced System Repair tool will help you to fix the entire Windows problems on your computer automatically. It scans the whole computer and then removes the errors and corruptions automatically. At the end of the repairing process you can see an optimized system before your eyes.

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