The HTC Wildfire mobile phone informed me of a 4 MB software update, 2.25.720.4. Downloaded it on the phone, said that it needs to restart phone after the update. I was updating Opera, so waited till that finished before going back to the software update. For this, I had to go to Settings -> About Phone -> System software updates
Once the update was installed and the phone rebooted, it took a good 10 minutes to boot up. The HTC welcome screen ("quietly brilliant") was displayed for a while, then the lock screen came on, on unlocking also the HTC welcome screen, finally a progress box with percentages display, finally booted to the home screen.