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I'm using a Lenovo Yoga 330 11
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I have several Windows tablets, including a new Win10 2-in-1 tablet built in Shenzhen (China), and I have had problems with that one identical to your issue with your Lenovo. This is what I have done (and am doing) to resolve them:
[0] Using keys Windows+R: control userpasswords2 and assign yourself using the bottom radio button to the Administrators Group. Yes, you already are, but do it anyway. Apply the setting, and then restart your PC.
[1] "Take Ownership" of
every root directory on every drive on the PC. See the attached .zip file.
[2] Change Security Permissions for
every root directory on every drive on the PC, including all of their subdirectories, to add your
User Name as having "Full Control". Ditto for the
Administrators Group and also
SYSTEM.
[3] Take Ownership of every newly downloaded Calibre .msi file (and all other downloaded .msi and .exe installation files) before running them. Always Run As Administrator.
[4] When you execute the Calibre .msi file, it
might fail due to permissions to update the Windows System Menu directory when it tries to install a shortcut in the Menu, and then reverse the
entire installation just for that minor feature. Very tedious. So, simply change the original install options to
not install a shortcut in the Menu.
[5] Originally, I got Calibre Portable to work installed on a partition, Drive D. Then, using the above steps, I got Calibre 64 to install on Drive C. I specified in the Environment Variables (Control Panel > System > Advanced System Settings > Environment Variables) to use the Settings directory of the Drive D Portable installation for the Calibre configuration. CALIBRE_CONFIG_DIRECTORY.
[6] Calibre had issues not being able to use C:\Windows\Temp as the directory for temporary files, so I also changed CALIBRE_TEMP_DIRECTORY to
C:\Temp. Which of course I took full control and ownership of as described above. I then set CCleaner to clean that particular directory at Startup.
It should not be this hard. If I had it to do over, I would have bought a 2-in-1 tablet manufactured elsewhere based on the assumption that my tablet's manufacturer botched its OEM-modified version of Win10 that it routinely installs.
Good luck.
DaltonST