Endpoint install problem

I am trying to install Endpoint protection on one of my windows 7 pro workstations and I can't seem to get it installed. When I try as a user, I get a message saying group policy is blocking it. When I logged in as admin and tried, it went through uninstalling third party software and stopped. I checked the log file and it had error code 134 on it. I checked Sophos website and saw a mention of visual c v.9 so I installed that. Tried again on the install and got the same message. This is what my log file has:

9/8/2015,2:19:20 PM,Information,------------------ Beginning installation of Sophos Anti-Virus and AutoUpdate ------------------,
9/8/2015,2:19:20 PM,Information,Setup version 3.3.0.79,
9/8/2015,2:19:20 PM,Information,Command line: c:\users\admini~1.pep\appdata\local\temp\sophos_bootstrap\setup.exe -server dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com -token ***************** -edxtimestamp 20150903T143922Z,
9/8/2015,2:19:20 PM,Information,Process security set successfully,
9/8/2015,2:19:20 PM,Information,Setup program was run from C:\Users\ADMINI~1.PEP\AppData\Local\Temp\sophos_bootstrap,
9/8/2015,2:19:20 PM,Information,Checking system TMP paths.,
9/8/2015,2:19:20 PM,Information,Checking TMP...,
9/8/2015,2:19:20 PM,Information,Temp path for System found: 'C:\Windows\TEMP'.,
9/8/2015,2:19:20 PM,Information,Tamper protection not installed,
9/8/2015,2:19:20 PM,Information,Checking if Sophos Anti-Virus or Sophos AutoUpdate are installed...,
9/8/2015,2:19:20 PM,Information,Starting wizard to collect information from user...,
9/8/2015,2:19:22 PM,Information,Checking for internet connectivity...,
9/8/2015,2:19:25 PM,Success,Successfully connected to the URL http://dci.sophosupd.com/.,
9/8/2015,2:19:25 PM,Information,Checking for internet connectivity...,
9/8/2015,2:19:28 PM,Success,Successfully connected to the URL dzr-mcs-amzn-us-west-2-fa88.upe.p.hmr.sophos.com/.../ep.,
9/8/2015,2:19:31 PM,Information,Starting the install sequence.,
9/8/2015,2:19:31 PM,Information,Checking for local third-party software...,
9/8/2015,2:19:31 PM,Information,Sending data back to Sophos...,
9/8/2015,2:19:33 PM,Success,Successfully connected to the URL d1.sophosupd.com/.../x.xml.,
9/8/2015,2:19:33 PM,Information,Done.,
9/8/2015,2:19:33 PM,Information,Searching for third-party security software.,
9/8/2015,2:19:52 PM,Information,Return Code 10 from third-party security software removal tool.,
9/8/2015,2:19:52 PM,Information,No third-party security software found.,
9/8/2015,2:19:52 PM,Information,Installing MSI...,
9/8/2015,2:19:52 PM,Information,Copying ESCDP.dat...,
9/8/2015,2:19:52 PM,Information,SAV not present, skipping install.,
9/8/2015,2:19:52 PM,Information,Registering SAV with AutoUpdate...,
9/8/2015,2:19:52 PM,Information,Installing MCS...,
9/8/2015,2:19:52 PM,Information,Started installing C:\Users\ADMINI~1.PEP\AppData\Local\Temp\sophos_bootstrap\mcsep\Sophos Management Communications System.msi ...,
9/8/2015,2:19:53 PM,ERROR,There was an unexpected problem with the installation of Sophos Endpoint Security and Control. Details: Sophos Management Communications System installation failed with error 0x643,
9/8/2015,2:19:57 PM,Information,Sending EBS feedback to Sophos...,
9/8/2015,2:19:57 PM,Information,Sending data back to Sophos...,
9/8/2015,2:20:00 PM,Success,Successfully connected to the URL d1.sophosupd.com/.../x.xml.,
9/8/2015,2:20:00 PM,Information,------------------ Found errors during installation: 134 ------------------,
9/8/2015,2:20:00 PM,Information,------------------ Installation program finishing with code 134 ------------------,

I would appreciate any help you could provide. I have tried several times and had no luck. I have installed it on 8 of my other workstations with no problems.

Thank you in advance for any help.