Thread: Calibre ebook viewer won't open on Win 10
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Old 09-15-2020, 07:06 AM   #3
JSWolf
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  • If you have Microsoft PowerToys installed, remove them as they interfere with Calibre.
  • Update your video driver if possible.
  • If you are running on a laptop with dual video chipseets, run Calibre with the other video chipset.
  • If you are not running the Microsoft AV, stop the AV you are using.
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