Yes.
I suggest you first run your installed version and go to
Options => Advanced
check the option "Save all settings to INI file"
Then close CC and as it closes it will create the INI file with all your preferences that had been in the registry.
Being ultra cautious my approach is to then download and unzip the portable version to a different location.
This includes a default INI file for default behaviour.
Then replace the default INI file with a copy of the the INI that has been saved in the original installed folder.
Then I have two versions (installed and portable) in two independent folders.
I launch (WITHOUT CLEANING) both and, side by side, confirm the same option checks are in place,
then I ONLY ANALYSE first one, and then the other,
and satisfy myself they are both wanting to zap the same things.
(
You can run the analysis simultaneous if you wish.
It is unlikely to make any difference in time taken or results.
"It cannot do any harm" - but that only means it is more of a surprise when Windows does a BSOD
If you try to CLEAN with both simultaneously you are much braver than I
)
Then I close both versions.
If all is well (and it always has been)
1. you may delete the contents of the installed version folder,
and replace with the new contents of the unzipped portable; or
2. delete the complete installed folder and set new start links to the new location.
Alan