Windows Activation Error : Error Code 0x80070005

To work around this issue, follow these steps:

1. Click Start, click All Programs, click Accessories, right-click Command Prompt, and then click Run as.
2. Click The following user, and then select Administrator in the User name list.
3. Click OK.
4. At a command prompt, type the following command, and then press ENTER:
   slmgr.vbs
   
   Ref: How to troubleshoot Volume Activation error codes
   
   

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   Carey Frisch