windows 8.1 upgrade - Error code 0x800704c7

Question

my pc came with windows 7,i upgraded to windows 8 via the web from ms store.my job did not want me to upgrade to 8.1 now i can. so i upgraded or try to  upgrade to 8.1,i could not get the store to launch,after a few months of no response on that issue,i went the 8.1 preview route and downloaded 8.1 preview and was going to upgrade to 8.1 final.i downloaded it and it seemed to work,but at the end of the install it would say go to settings and activate,i go to settings and it say i need to install the new version,i check the status and i am still in 8.1 preview.i finally got an error.which i posted below.

Answer 1

Hi Charles,

Are you using a 3^rd^ party antivirus application on your computer?

Reset the Windows Store cache, keep the computer in a clean boot status, and install Windows 8.1 update and check. If you have installed a 3^rd^ party antivirus application, disable it.

To reset Store cache:

a. Press the Windows+ R keys on your keyboard to open the Run dialog.

b. Type WSReset.exe, and click/tap on OK.

c. The Store will now open, and state the following: The cache for the store was cleared. You can now browse the store for apps.

Disable third-party Security Software.

a. You should see an icon for your Antivirus program in the Task-bar notification area. It is usually at the bottom right corner of your desktop.

b. Click on the third-party Security Software Icon, you will see a pop up.

c. In that pop and select the option to disable, click on it.

d. Now the third-party Security Software will be disabled.

Important Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you shouldn't disable your antivirus software. If you have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you're connected to the Internet or a network while your antivirus software is disabled, your computer is vulnerable to attacks.

Keep the computer in a clean boot status and check. Clean boot eliminates the other applications conflict.

How to perform a clean boot to troubleshoot a problem in Windows Vista, Windows 7, or Windows 8.

http://support.microsoft.com/kb/929135

Note: Please refer to the section: “How to reset the computer to start as usual after troubleshooting with clean boot” of the Kb article to boot the computer in normal startup after fixing the issue

You can also refer to the following link.

Update from Windows 8.1 Preview to Windows 8.1

http://windows.microsoft.com/en-us/windows-8/update-from-preview

Hope this information helps you. Please do let us know if you need further assistance, we’ll be glad to assist you.

Answer 2

i am using windows defender.

i have tried the reset to no avail.

and have done a clean boot.

Answer 3

Hi Charles,

Run the DISM tool and check.

Refer to “Use the inbox Deployment Image Servicing and Management (DISM) tool to fix corruption errors” from the following link.

http://support.microsoft.com/kb/947821/en-us

Answer 4

i ended up reinstalling windows 8,than i updated to 8.1 but after i did that,the store no longer works,it  open than shuts,half the pre loaded apps have the name of the app and want open,settings want open. so i guess i need to re-download 8 again.

Answer 5

i tried the dism tool as well did nothing  either,i will just stick with the 8 cause 8.1 seem to not work,icannot use the 89.1 download with key code as my 8 key does not work with 8.1 so i can only do the 8.1 upgrade.which seems to not work