Leo only installed it because the prompt said "Critical Stability Update." His work PC had been freezing during renders—just long enough to annoy, not long enough to justify a new machine. The driver version: xx.xx.15.4251 . No release notes. No support thread. Just a silent installer that ran in two seconds flat.
: If your computer is connected to the internet and handles sensitive data, you should not remain on driver xx.xx.15.4251 unless absolutely forced by legacy software. Update to at least 15.40.48.5174 (the last security-patched driver for 4th/5th gen on Windows 10). If you are on Windows 7 without extended security updates, consider air-gapping the machine. intel driver xx.xx.15.4251
If the date appears as 06/21/2006 or a similar old timestamp, this is a Windows display bug or a generic Microsoft basic driver loaded because the Intel driver failed to install. Reinstall manually. Leo only installed it because the prompt said