Power Policy Manager Unable To Set Policy – Windows XP Posted on by Webmaster IT Support Forum › Forums › Windows › Windows XP › Troubleshooting › Power Policy Manager Unable To Set Policy – Windows XP Tagged: Power Policy, Power Policy Manager This topic has 0 replies, 1 voice, and was last updated 6 years, 7 months ago by Webmaster. Viewing 0 reply threads Author Posts November 3, 2016 at 8:19 am #1986 WebmasterKeymaster When trying to make changes to the Power Policy settings on Windows XP, you get this message: Power policy manager unable to set policy This is because the user doesn’t have permissions to change the Power Policy. To fix this, make the user a Power User. Author Posts Viewing 0 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In