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Add a note about Microsoft PowerToys interfering with the installer

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Kovid Goyal 2020-09-05 06:37:21 +05:30
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manual/faq.rst
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@ -906,6 +906,7 @@ I downloaded the installer, but it is not working?
Downloading from the Internet can sometimes result in a corrupted download. If the calibre installer you downloaded is not opening, try downloading it again. If re-downloading it does not work, download it from `an alternate location <https://github.com/kovidgoyal/calibre/releases/latest>`_. If the installer still doesn't work, then something on your computer is preventing it from running. Downloading from the Internet can sometimes result in a corrupted download. If the calibre installer you downloaded is not opening, try downloading it again. If re-downloading it does not work, download it from `an alternate location <https://github.com/kovidgoyal/calibre/releases/latest>`_. If the installer still doesn't work, then something on your computer is preventing it from running.
* Try temporarily disabling your antivirus program (Microsoft Security Essentials, or Kaspersky or Norton or McAfee or whatever). This is most likely the culprit if the upgrade process is hanging in the middle. * Try temporarily disabling your antivirus program (Microsoft Security Essentials, or Kaspersky or Norton or McAfee or whatever). This is most likely the culprit if the upgrade process is hanging in the middle.
* Similarly, if the installer is failing/rolling and you have Microsoft PowerToys running, quit it.
* Try rebooting your computer and running a registry cleaner like `Wise registry cleaner <https://www.wisecleaner.com>`_. * Try rebooting your computer and running a registry cleaner like `Wise registry cleaner <https://www.wisecleaner.com>`_.
* Try a clean install. That is, uninstall calibre, delete :file:`C:\\Program Files\\Calibre2` (or wherever you previously chose to install calibre). Then re-install calibre. Note that uninstalling does not touch your books or settings. * Try a clean install. That is, uninstall calibre, delete :file:`C:\\Program Files\\Calibre2` (or wherever you previously chose to install calibre). Then re-install calibre. Note that uninstalling does not touch your books or settings.
* Try downloading the installer with an alternate browser. For example if you are using Internet Explorer, try using Firefox or Chrome instead. * Try downloading the installer with an alternate browser. For example if you are using Internet Explorer, try using Firefox or Chrome instead.