Hello,
Corrupted driver is one of the possible causes why it is missing.
We'd like to ask few questions so we can isolate your missing SXUPTP driver concern. Kindly answer the following:
- What's the exact error message when you're trying to update driver?
- How did you update it? It it form the Device Manager or manufacturer's website?
- Which operating system are you using? Are you on Windows 7?