I have an issue with my dell optiplex 5050 pc running windows 10. Currently it is giving me an error on startup that states " alert! dust filter is due to be replaced or cleaned. My PC doesn't come with a dust filter so I am not sure why it is alerting me. For some reason it will not let me boot into the BIOS settings to disable the error, I have tried pressing f2 upon startup but it goes straigh t to the message before disappearing after ten seconds and booting to the login screen. I have tried accessing the bios on the recovery settings but do not have the option to enter the BIOS settings in the recovery settings. Any help would be appreciated and I have attached a screenshot of the error.