[Q] "Android is Upgrading" on every boot

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I was running RumRaider until recently I relocked and used the RUU to revert to stock and then upgraded to ICS with the OTA update, which is what I'm currently using. For some reason though, every time I reboot the phone, it does the application optimization thing where it says "Android is Upgrading..." and goes through all of my apps. Any ideas why it is doing this? I have never used ICS before personally but it seems like it shouldn't have to optimize all of my applications on every boot (it takes a long time). Thanks.

Sent from my HTC PH39100 using Tapatalk 2

i recently got my vivid, and it came with ICS and does the exact same thing. it's my first android, so i was wondering what was going on. after researching various forums, it seems like everyone gets the same "upgrading" thing too.

It's normal on stock roms

Sent from my HTC Vivid via Tapatalk

It does it on my Rum_Float ROM too. 131 to 98 apps updating every reboot.

Try to wipe your cache and Dalvik cache through recovery.
If that doesn't work, try reflashing your kernel.
Those worked for me

As far as I can tell, this is a "feature" in ICS associated with Odexed ROMs. Once a ROM has been deodexed, or you flash a doedexed ROM, you won't get the message. You will also get this message anytime dalvik cache has been cleared. So if you don't want to see this, you'll need to flash a custom, deodexed ROM.

A question I have is whether the total boot time is much different now with ICS than it was under Android 2.3.4. I seem to recall that my Vivid still took a long time to start up. It just didn't show anything other than the AT&T screen.