Hi, how fast is your internet connection? what is the brand of your graphics card?
I found that:
Causes of "error code 0xc0000409"
If you have received this warning on your PC, it means that there has been a malfunction in your system. “Error Code 0xc0000409” is one of the worries that users get as a result of improper or failed installation or uninstallation of software that may have left invalid entries in your system items, shutdown incorrect system file due to power failure or some other factor, a person with little technical knowledge who accidentally deleted a necessary system file or entry for a system item, as well as a number of other causes.
So on this site he says that we can repair with the PC Repair application (but I think the software is paying)
Otherwise try this:
Step 1: Type Command Prompt in the search box of Windows and choose the best-matched one. Then right-click it to choose Run as administrator to continue.
Step 2: In the command line window, type the command sfc /scannow and hit Enter to continue.
Then the System File Checker will begin to scan and fix the corrupted system files. Please do not close the command line window until you see the message verification 100% complete. When it is finished, reboot your computer and check whether the error 0xc0000409 is solved.
(look at that too can be interesting) Solution to Windows Update error 0xc0000409 - solved with fix!