Originally Posted by bosun120
Would you mind sharing how to do this? Also does this save just the UI config or all the preferences data?
All preferences are stored here.
Go to Preferences - Miscellaneous and Open calibre configuration directory. This is the directory with the configuration. Assuming the same OS, move it to replace the new install's config directory, start the new install and keep your fingers crossed. If for some reason it screws thing up exit calibre and delete the directory, upon starting calibre a default config will be recreated.
If you run the portable version this should work every time.
A preferences backup feature to guarantee moving preferences between installs would be nice. I just use the portable version now and the same exact setup works on my Windows 7 and Windows XP machines.