Oct 302015

“Help! I update my Windows 10 and to my disappointment there is an error with 80240020. I can’t accept that because I couldn’t use the computer because of the errors. I really need to get my Windows system to be well in usage. I don’t understand this bug. So does anyone know how? I think I need your urgent help. And the most important point is that I hope your method won’t let me lose my data in that computer. Thank you so much. Wait for your news and any ways will be appreciative. ”

For those Windows 7/8.1 users who have booked updating to Windows 10, some of them will be prompted with “80240020” error during the update. This bug often happens after the system installation has been downloaded and is prepared to be installed. Under normal condition, the users who update Windows system need to through interactive manipulation that users have confirmed. Microsoft declares that it will be the biggest software update in the history of it and it hopes that Windows 10 can provide the best user experience for their huge users. In this article, we will discuss how to fix upgrade to windows 10 install failed error code 80240020.


However, it seems that Microsoft has not prepared it well. So I suggest that if you haven’t received the update inform, you had better wait for a period of time until your Windows system hints you. Given that lots of users update their system to Windows 10 according to the command prompt, instead of confirming it by means of update remind, so this error may happen. For those users who meet 80240020 errors, if you hope to update right now, you can try to use the follow method to cope with it.

Things you need to prepare:
Windows 7/8/8.1

Step 1: Press Win+R to run, and then type “regedit” to open regedit.
Step 2: Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\WindowsUpdate\OSUpgrade
Step 3: Create a new value named AllowOSUpgrade的DWORD (32-bit) on the right side and then double click the new value and then set up it to 1.
Step 4: After changing it, open the Windows Update to check it, at this time, you can click the “Start Update” button to update Windows 10.

Windows 8/8.1 users need to open the Windows Update in control panel, not the Windows Update in Modern version setting. And if you need to fix other Windows update bugs, such as black screen, white screen, etc, you can use Tenorshare Windows Boot Genius.