Software won't update on new iMac
I'm trying to update the software on my iMac from Sonoma 14.2.1 to Sonoma 14.6.1 but it won't accept my password. This is the same password I use to log in to the iMac a dozen times a day. Any suggestions on how I should proceed?
My iMac:
Apple M3 chip with 8‑core CPU with 4 performance cores and 4 efficiency cores,
10‑core GPU and 16‑core Neural Engine
1TB SSD storage, 24GB unified memory
iMac 24″, macOS 14.2