After going through the 21 updated yesterday, I logged on today and my battery icon is gone. I tried to reactivate it but it is grayed out and I cannot check it. Any suggestions?

My Computer
System One
-
- Manufacturer/Model
- [email protected]
- Motherboard
- [email protected]
- Memory
- [email protected]
- Graphics card(s)
- [email protected]
- Sound Card
- [email protected]
- Monitor(s) Displays
- [email protected]