When in doubt, don’t
If an end user is staring at a PC with an issue, and they have the slightest bit of doubt about taking an action – they shouldn’t take that action. Although not common, taking the wrong action could have catastrophic consequences. Rather than create additional problems, users should always call IT when they don’t know what to do. By default, they may not know this.
Save us both a lot of trouble, please call this office if you need help.