Please leave a comment in the comment section below or even better: like and share this blog post in the social networks to help spread the word about this solution. If all the above fails, then use the telephone method to activate your Windows copy. (If asked to enter your product key, then type it to activate Windows.)ĩ. Click OK at "Command complete successfully" message and restart your system. In command prompt window type: slmgr /rearm & press Enter.Ĩ. Right-click at Command Prompt and click Run As Administrator.ħ. Open an administrative command prompt by going to:ī. At the right pane, double click at MediaBootInstall REG_DWORD value and change the value data from 1 to 0.Ħ. HKEY_LOCAL_MACHINE/Software/Microsoft/Windows/CurrentVersion/Setup/OOBEĤ. Type regedit and press OK to open Registry Editor. Press Windows + R keys to open the run command box.Ģ. Change the MediaBootInstall registry key from 1 to 0.ġ. Install all important updates found and restart your computer. Open Windows Update ad check for updates.Ģ. Install all available important updates.ġ. 1 or 2 years ago), restart your system and retry to activate Windows. If the 0x80072f78 activation error persists, then set the date or year back (in a older time e.g. After restart try to activate your Windows copy again. If not, then correct them and reboot your computer. In Windows: you have set the correct Date, Time and Time Zone. In BIOS: you have set the correct Date, Time and Year.Ģ. How to fix the Windows 7 or Vista 0x80072f78 activation error. This troubleshooting guide, contains instructions to fix the Windows Activation Error 0x80072f78 on Windows 7 or Vista. iHeartChristmas Classics Playlist iHeartRadio, a music movie is available. If you don't use a proxy server to connect to the Internet, then try the methods mentioned below to resolve the 0x80072f78 activation error. Classic Holiday Christmas Songs Streaming on Roku. At this case try to disable the basic authentication on the proxy server side. This 0x80072f78 error issue may occur when you 're connecting to the Internet by using a proxy server. As Microsoft says the error 0x80072f78 is faced because the server returned an invalid or unrecognized response when you try to activate Windows 7 or Vista. The Windows activation error 0x80072f78 may occurred while trying to activate Windows 7 or Windows Vista.
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