I've installed the Reason 1.0.1 update and it doesn't work. Now what?

Some users have reported problems when installing Reason 1.0.1. If this happens to you, please do as follows:

If you can't launch Reason at all after installing the update
It seems that the installer fails to overwrite some critical files on some systems. To fix this, please delete the following files:
* Mac:
System Folder:Extensions:Reason Engine
System Folder:Extensions:REX Shared Library
System Folder:Extensions:ReWire
System Folder:Preferences:Reason preferences
* Windows
c:\Windows\REX.dll c:\Windows\ReWire.dll c:\Windows\Reason.prf (if present) c:\Windows\System\ReWire.dll (if present)
Please note that this complete uninstall will delete your settings from Reason 1.0 so you will have to make audio and MIDI settings when you launch Reason 1.0.

Other Popular Articles:
• I have installed Reason and I can play the instruments from my MIDI keyboard, but I can't record in the sequencer. Why?
• Since installing Reason I can't use my VST instruments in Cubase. I get a message saying 'No more mixer channels' Why?
• When is the Serial Number needed?
• When I installed ReBirth on my computer, Reason stopped working and says that it can't open the ReWire 2 system. Why?
• After installing Reason 1.0.1 on my Windows2000 machine, audio won't play back properly on my SoundBlaster card.