There are 3 step to repair runtime 429 error
I think your computer is already very dangerous, and you should fix it immediately. I had the same problem with you, it bother me for a long time. I have searched many ways online and found that the following method is the best, my friend had runtime 429 error too, he also quickly fix runtime 429 error with the following method. I think you should try it, I hope it can help you:
1: Download a runtime 429 error repair tool,install this error repair tool.
2: Open runtime 429 error repair tool and scan you computer for free
3: Then click the Repair All Button again and your done! It is very easy to repair runtime 429 error.
Here are the url of runtime 429 error repair tool:http://www.RepairErrorSafe.com/ttfix-runtime_429_error-zz0001