Step 1) Right Click Keygen and click Run as Administration.
Step 2) Wait for this to go away.
Step 3) Select Vegas Pro 10.0.
Step 4) Press PATCH.
Step 5) Find the Sony Vegas Folder.
It should be under computer, program files, sony, vegas pro 10.0.
Step 6) Click OK.
Step 7) Wait for it to Patch.
Step
Use the Serial Number and Auth Code now after the Patch.
THERE YOU GO!