Hi Mr Morris,
In part i agree with juyruyrfiujh, You don't have to worry much with the majority of registry issues, only ones that have been effected by virus's, malware etc.
Most standard issues are related to missing fill types and program shortcuts if you have uninstalled a program or updated your computer and unused registry entries.
Personally is use a cracking FREE registry/system cleaner called "CCleaner", with this software you can clean the registry, temp files, temporary internet files, you can disable start up programs to make the system quicker
Download CCleaner from here >>>>>
When you have the application installed double click on the desktop icon, a window will appear like this >>>
Click on the registry tab then select "scan for issues". When it gets to 100% click on "fix selected issues", a window will appear like this >>>>>>>
Click on "fix all selected issues", for first time use of the program it will ask you if you want to back the changes to the registry, it's imperative that you click on yes because if you don't the computer will not remember the changes and no registry issues will be fixed.
Repeat the process until no issues are found remembering to back up to the registry each time.
The cleaner tab cleans your temp and temporary internet files.
I recommend you explore CCleaner as this software is a very useful tool used by computer technicians like myself world wide.
Good luck and please post back if require anymore advice.