Here is a list of things to try when troubleshooting a printer not working after a software update:

1. First, check that the printer is receiving power and is turned on
2. Then, check that the printer is correctly connected to your computer
3. Update your printer’s driver software. You may be able to do this automatically, or you may need to check the manufacturer’s website for the latest driver version
4. Try restarting the printer, computer, and any related networking devices such as routers and modems
5. Check the print spooler service to make sure it is running
6. Check the printer queue to make sure no jobs are stuck