CC Desktop app doesn't show up after install

I recently reinstalled the OS on my computer (Win7, 64 bit) and now I'm having problems getting CC back up and running. I've downloaded CreativeCloudSet-up.exe and run through the install process, but CC never shows up on my desktop, and I can't find it anywhere in my start menu. Checking the PDApp.log file I see a single error:

Setting values for registry Key SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Adobe Creative Cloud

If I try to reinstall I get a message saying: "Installer failed to initialize."

I've tried renaming the OOBE folder and going through the entire process again, but get the exact same results.

CC works fine on my laptop, and it used to work fine on this computer (prior to me reinstalling the OS), so not sure what the problem is. I have an urgent project I'm trying to work on, so any help would be appreciated.

Thanks!