Not clear from your post why you can't run the same install program you downloaded to your hard disk when you bought it originally.
It could be that it won't accept your license code (because it doesn't know it's a reinstall on the same machine, but thinks you're trying to use it on another machine at the same time). Then their customer service should solve that, either by giving you a new license code or by deleting the old occurrence in their database so you can reuse it.
Most of moderators here think a registry cleaner is a totally useless and even dangerous program. So our advice would be to simply forget about installing it and take your loss. But that's up to you to decide.
Kees
Hi I am new to this forum so "happy New Year to all, I wonder if some one can advice me how to reinstall Reg Mechanic,
I have had a computer crash but I have nearl reinstalled most of my software but all I found with Reg Mechanic is I can install a new copy but found no were to update my copy.
I have several different Codes and serial numbers but as i said not found a page that I can enter them, its a paid for a prenuim copy I ,m trying to install many thanks
jimmypP

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