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Step 1:
Launch Start Menu, search and select Command Prompt. Then right-click on it and choose Run as Administrator.

Step 2:
Type the following command without quotes at the Command Prompt and then Enter:
"net user administrator /active:yes" and you will get message"The command completed successfully". as below

Step 3:
Launch Start Menu once again and right-click on current user-account title at the top-left of the screen. Then click Sign-out.

Step 4:
At the login screen, log into the Administrator account and you will return to the Desktop of that user profile.

Step 5:
Locate and run your setup file for the program which you want to install.

Step 6:
After completed the installation, go back into your regular account after logging out of the Admin account.

Step 7:
Finally, disable the Administrator account as like before from Command Prompt: "net user administrator /active:no".