| Hardware ID | Purpose | |-------------|---------| | SCFILTER\CID_2777BE07-6993-4513-BD80-C184FCB0AB2D | Microsoft CLR‑compatible smart card | | SCFILTER\CID_E2F748F9-DB8B-4C08-A258-583D8955D94A | Microsoft CLR‑compatible smart card |
30 Aug 2016 — How it works. A smart card filter driver (scfilter) precedes the smart card reader driver and detects smart card insertion events. Microsoft Learn Smart Card Troubleshooting | Microsoft Learn scfilter cid87d25e32ac0d4ef0b1e0502c6b7dfb77