How do I fix an “Invalid license data. Reinstall is required.” error in Visual C# 2010 Express?

Question

I\'ve tried to install Visual C# 2010 Express edition onto my PC, but whenever I try to run it, I get a error message.

Invalid license data. Reinstall

Answer 1

This worked for me on Vista. It's based on work-around at MS: http://connect.microsoft.com/VisualStudio/feedback/details/520110/invalid-license-data-reinstall-is-required

1. Download subinacl command line tool
   http://www.microsoft.com/downloads/en/confirmation.aspx?FamilyID=e8ba3e56-d8fe-4a91-93cf-ed6985e3927b&displaylang=en

2. Run these commands:
   subinacl /subkeyreg HKEY_CLASSES_ROOT\Licenses /setowner=everyone
subinacl /subkeyreg HKEY_CLASSES_ROOT\Licenses /grant=everyone=f

3. Start VS 2010 Express again and this time it asks for a license key.

(On Windows 7 Home I had to run the above commands twice before they worked correctly)