Exit Code 7 error installing Dreamweaver CC 2014

Question

I can't install Dreamweaver CC (2014) - keeps erroring at about 82% installation with the following error (I'm on Windows 7)
Any help much appreciated... I have tried removing the sourceCodePro-Light-ttf font but this is always in use by 'another program' so won't allow me to delete or move temporarily - as for 'file (Seq 9336)???/
Cheers
Steve
Here's the error code:
Exit Code: 7
Please see specific errors below for troubleshooting. For example, ERROR: DF012, DF024 ...
-------------------------------------- Summary --------------------------------------
- 0 fatal error(s), 2 error(s)
----------- Payload: Adobe Dreamweaver CC 2014.1 15.0.0.0 {7F823F8E-4348-11E4-8BF8-81763C49AA32} -----------
ERROR: DF012: Unable to find file(Seq 9336)
ERROR: DF024: Unable to preserve original file at "C:\Windows\Fonts\SourceCodePro-Light.ttf" Error 32 The process cannot access the file because it is being used by another process.(Seq 9336)

Answer 1

Thanks everyone
I'm no techie so reading through all the suggestions was sort of helpful but non gave the answer... or at least an answer I understood. In the end, I just used a bit of common sense after several more failed installation attempts following the use of the adobe cleaner tool/software, I decided that the problem was clearly an issue with permissions on the font mentioned in the error. So, backed up the font on to my desktop, and restarted windows 7 in safe mode. This allowed me to delete the font in question from the c:/windows/fonts folder which couldn't be done when booting up windows normally beacuse it was always 'in use by another application'.
Once the font was deleted, I rebooted again but this time in full windows mode rather than safe mode and installed Dreamweaver CC 2014 successfully.
Thanks for all your help guys, I do appreciate you posting the suggested links... if only the above simple instructions had been listed on the Adobe Troubleshooting pages, I could have done something more constructive with the 4 hours of my life I won't get back spent wasting my time fixing this!!!
Now for some shut-eye!
Steve