There are many posts on this issue, have you searched the forums?
Check in the following paths for the b1-local-machine file and edit it to show your correct details:
C:\Program Files(X86 if 32 bit)\SAP\SAP Business One\Conf
C:\Program Files\SAP\SAP Business One DI API\Conf
Also check:
C:\Users\**Your User**\AppData\Local\VirtualStore\Program Files and
C:\Users\**Your User**\AppData\Local\SAP
Where UAC are high that can be stored in these places instead