If your friend has lent you her computer and you need to fix it without accessing her user account, there are several ways to approach this depending on the issue at hand. Here are a few methods you can try: 1. Startup Repair: You can perform a startup repair using the Windows Recovery Environment. This can fix issues that prevent Windows from booting properly. 2. System Restore: If the computer is experiencing software-related issues, you can try using System Restore to revert the system to a previous state when it was working correctly. 3. Advanced Startup Options: Access the advanced startup options by restarting the computer and pressing a specific key (usually F8 or Shift + Restart) to access troubleshooting...