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Old 08-26-2014, 12:20 PM   #1
mrgou
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mrgou began at the beginning.
 
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Invalid key error during Calibre installation

Hi,

I was trying to upgrade my 1.45 install of Calibre to 2.0 64-bits on my Windows 8.1 PC, but I kept getting this error message from the installer:



This would translate to "Key not valid for use in specified state".

I've tried uninstalling Calibre 1.45, running a registry clean-up, but now, not only can I still not install Calibre 2.0, I also can't install Calibre 1.45.

The problem occurs either with the 32 or 64 bits versions.

Can anybody help?

Thanks!

R.
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