Windows 7 Activation Problem

1. Windows Activation and Key Issues:​

• Key Rejection: When you used your roommate's version of Windows and tried to activate it with your key, it likely didn't work because each Windows key is tied to a specific installation. Using a different Windows version might lead to key rejection.
• Counterfeit Windows Notification: If Windows is showing a message that it's counterfeit, it means the system couldn't verify the authenticity of the Windows version you're using.

2. Obtaining a Replacement Key:​

• Microsoft Support: Microsoft might provide a replacement key under certain circumstances. Contacting Microsoft support could be a viable option, but you mentioned not wanting to pay for customer service. However, there are some avenues you can explore for assistance.
• Activating Windows 7: It's crucial to have a valid key to ensure your system is properly licensed.

3. Using Windows Without Activation:​

• Limited Functionality: While you can continue using Windows without activating it, there are restrictions. Unactivated Windows may lose some features, and you could encounter frequent reminders to activate.
• Risk of Disablement: Microsoft may periodically and gradually limit functionality in unactivated versions of Windows. This could potentially lead to essential features being disabled over time.

Possible Solutions:​

1. Locate Vista Boot Disks: Try to find the original Vista installation discs that came with your computer. You may be able to use them to reinstall Vista and then upgrade to Windows 7 as intended.
2. Microsoft Assistance: Consider reaching out to Microsoft support (online forums, community support, etc.) for possible solutions. There may be avenues for obtaining a valid key without significant cost.
3. Check for Hardware Issues: Since you mentioned experiencing blue screens, ensure that there are no hardware issues causing system instability.
4. Consider Windows Update: Ensure the system is fully updated to mitigate any known issues. Ultimately, resolving the issue may involve obtaining a valid key from Microsoft or finding a legitimate way to reinstall Windows using the appropriate installation files. I recommend exploring these options to ensure a stable and properly licensed Windows installation.