Help me avoid a future problems

I cant format the drive, Ive got 2 patitions on it, 465GB each, one is active, primary the other is logical.
With a little effort I can format the partitions one at a time in January.
What should I do?
Should I just ignore it?

You said in the previous page "I always wipe the old OS HD's to prevent boot sector code from sometimes interfering, even at POST. Clean - Diskpart Command."
If the warnings parameters rise I will backup and try that too.
I understand what I have to do.
Thank you very much guys for your help and patience.