Failing to install Flash Pro CS6

Whilst trying to install the trial for Flash Pro CS6 I continually get 'Some items for the following product(s) could not be installed successfully'. If I click through to the 'error summary file' I get this:

Exit Code: 6

Please see specific errors and warnings below for troubleshooting. For example,  ERROR: DF023, DW063 ... WARNING: DS013 ...

 

 

-------------------------------------- Summary --------------------------------------

 

- 1 fatal error(s), 4 error(s), 3 warning(s)

 

 

 

WARNING: DS013: Payload {7EABC54B-02C3-4DA1-9EB4-974CE7414066} AdobeHelp 3.4.0.0 is already installed and the session payload {D38116C8-C472-4BB0-AD6F-0C1DD1320D1D} AdobeHelp 4.0.0.0 has no upgrade/conflict relationship with it.

 

WARNING: DS013: Payload {1A1E5FF9-D0FD-42A3-8E18-E5E7E95E1AB4} DynamiclinkSupport 5.5.0.0 is already installed and the session payload {DE88AA40-6766-43D3-A755-8FC374B3D2C3} DynamiclinkSupport 6.0.0.0 has no upgrade/conflict relationship with it.

 

WARNING: DS013: Checking payloads upgrade/conflict relationships : Failed with code 1

 

----------- Payload: {36682D68-3834-487E-BA49-DFA4AB0A2E32} Adobe CSXS Infrastructure CS6 3.0.0.0 -----------

 

ERROR: DF023: Unable to delete backup file at "C:\adobeTemp\backup\adobetmp372713768" Error 5 Access is denied.(Seq 38)

 

ERROR: DW063: Error committing command ARKDeleteFileCommand(Seq 38)

 

----------- Payload: {4FAB339E-2132-434F-9376-9CD735E4C69C} Adobe Flash CS6 12.0.0.0 -----------

 

FATAL: DS003: Cannot extract 'C:\Users\Titanium\Torrents\Adobe Flash Pro CS6\SOFTWARE\payloads\AdobeFlash12.0-mul\Assets1_1.zip' to 'C:\Program Files (x86)\Common Files\Adobe\Installers\adobeTemp\{4FAB339E-2132-434F-9376-9CD735E4C69C}'. Error: Error 2 The system cannot find the file specified.

 

 

 

ERROR: DW050: The following payload errors were found during install:

 

ERROR: DW050:  - Adobe Flash CS6_AdobeFlash12.0-en_USLanguagePack: Install failed

 

ERROR: DW050:  - Adobe Flash CS6: Failed due to Language Pack installation failure

 

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I'm running Windows 7 Ultimate on a 64 bit AMD Athlon X4 635 processor with a nVidia GTX460 and 8GB of RAM if that matters.

Any help would be much appreciated. If it helps, the exact same thing happened with CS5.5.