But how does she try to scam you when she wants you to open the computer? What does she gain lol? Maybe she just got the wrong number? Indian IT-support ftw.
They usually try to trick people into installing TeamViewer or similar to get remote access to the system. There is a few videos on youtube, where people gave them access to virtual machines and "played their game". Sometimes leading to the "support" executing some recursive cd/dir command, calling it a "system scan" and offering the "victim" to fix their computer - all the victim has to do is to pay them for the service...