Games For Windows Marketplace Client won't start problem

When my Games For Windows Marketplace Client would not start I found that installing Windows Live Essentials fixed the problem.

The Error I was getting:
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Problem Event Name:    CLR20r3
Problem Signature 01:    gfwlclient.exe
Problem Signature 02:    1.0.0.0 
Problem Signature 03:    4d93c2a6 
Problem Signature 04:    XLiveServices 
Problem Signature 05:    1.0.0.0 
Problem Signature 06:    4d93c2a5 
Problem Signature 07:    5bb 
Problem Signature 08:    4d3 
Problem Signature 09:    System.EntryPointNotFound
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