The host is Win2012 STD with Hyper-V role enabled, the guest is SBS2011.
The "Integration Services" is on the guest's D: drive. It has two folders: x86 and AMD64.
I mistakenly ran setup from x86 folder on the guest. Then I realized that I should have run setup from AMD64 folder. Trying to correct this, I ran setup from AMD64 folder, but a message popped up saying that I was already on the latest version and it would not continue.
Well, the guest seems to be okay so far even with this mistake.
How should I correct this mistake if it matters?