Quote:
Originally Posted by Comfy.n
Hmm, that should be easier than it may seem, and I'm thinking it might be the best solution for your case (I'm not sure, because I never tried it myself, but it seems necessary): what you need to do is to press Windows key + R (Win + R), then type cmd, hit Enter, and then type the one-line command BR quoted in the "black screen" that opens:
calibre-debug --default-programs=unregister
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If you paste the command into the Windows Run edit box and press enter, the DOS box will open, the command will be executed, and the DOS box will close.
BR