login to mssql studio assistance

Hey guys.
i have 2 servers.  Neither one of them do we know the sa password.  I need to get in SMSS to change it.
i can't get into smss.  I am logged in as the local administrator on the box and it won't allow access to smss.
do i need to add the local administrator to a security group.
listed are two screenshots of the security groups.
1 server a
2 server bserveraserveraserverb.jpg
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Deepak ChauhanSQL Server DBACommented:
Deepak ChauhanSQL Server DBACommented:
I have already suggested you two method in this situation.

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