Computer setting active partition at its own will

[Crawley]

Hi, everyone

I have Toh Leo installed and updated it to 10.5.1 (efi v8). Everyrhing is working well but sometimes when I restart my computer it won't boot until I re-set its active partition because it seems that my computer has mind of its own.

I have 4 partitions

1. Vista Installed

2. Leo partition (boot)

3. Storage

4. Storage (this is also partition that my computer sets as boot like mentioned above)

 

This has no effect on the way how the system functions, but is really annoying sometimes. If anyone had such problem please provide some solution.

Tnx