There’s nothing to stop you using software that’s been dropped by its developer in this way, but with no further updates or bug fixes in prospect, you face an uncertain future if something goes wrong with it.
Anti-virus programs come pre-installed on most Dell Computers, so customers sometimes install other anti-virus programs without realizing that there is already a system installed.
If you decide to install an alternate anti-virus software, it is important that you first uninstall any other anti-virus programs that may be running on your computer.
That means unless any outstanding bugs affect its (or Windows’) security, they won’t be fixed after this date.
The clock then starts ticking for ‘extended’ support and, in another five years, that also ends.
To learn how to download and install the latest driver on your Dell PC, refer to the Dell knowledge-base article How do I download and install device driver? To learn how to download and install the latest BIOS update on your Dell PC, refer to the Dell knowledge-base article Dell BIOS Updates.