OK... I am seeking info on cautions about Contacts, etc.
And will I lose my current account name and profile?
No - that's 'closing your Skype account' not 'uninstalling your Skype software'. Different operation, but look out for 'closing account' as an option and don't select it, it's that simple.
Uninstalling and reinstalling is such a standard operation that Skype themselves have a support page about it.
As for contacts, and chat history etc., you need to do a backup of the 'appdata'\skype folder, which is where such files are, to a separate location altogether on the hard drive, or even to a different device such as a flash drive, before doing the uninstall... then you can restore those files to that folder after the new install is done.
Here's the instructions page for Skype, which will explain the whole process step-by-step faster and better than I can - but ask me for any needed clarification of course:
A 'simple uninstall' might be good enough. But do the backup first!
And, restart between the backup-then-uninstall, and the reinstall! this can make the process much more likely to succeed.
(Be sure that you know your Skype account name or username, and the password ***** it, before beginning this process, also. In case that needs to be said.)
Let me know how it goes, please. Thanks.