Caibre - cannot start under W10/11

[BetterRed]

I merged two threads, one from @zebideedoodah, one from @ratt56, into this thread.

There is something strange happening with Windows install/updates, I suspect there has been some subtle change with the Windows Installer.

BR

[kovidgoyal]

The standard fix for these is to just delete c:\Program Files\Calibre2 (or wherever calibre installed) manually and then run the installer.

[zebideedoodah]

Thank you.

[Capricorn]

Originally Posted by crane3

There are different types of administrator which is being kept secret by microshit; also it looks like the levels of administrator are different as when the win 10 was upgraded from win 7 or 8; which appears to be different when the laptop or tablet had win 10 preinstalled....probably other types of "administrator" also exist.

No. There are no "secret" admin accounts in windows 7, 8, 10 or 11. You either work with a standard user account or with an admin user account. Normally, you always work with a standard user account for security reasons. Only when you need to do admin stuff, do you need to login with the admin user account. And if you install a program with a standard user account, it will ask for the admin user account password.

And if you have problems with admin account privileges, your installation of windows has some problem. But not due to "secret" stuff or whatever.

[theducks]

Was Calibre (and/or its CLI) shut down?

Is there a reason you want to run the 32bit version (an old 32bit CPU is the perfect reason )

[crane3]

Originally Posted by Capricorn

No. There are no "secret" admin accounts in windows 7, 8, 10 or 11. You either work with a standard user account or with an admin user account. Normally, you always work with a standard user account for security reasons. Only when you need to do admin stuff, do you need to login with the admin user account. And if you install a program with a standard user account, it will ask for the admin user account password.

And if you have problems with admin account privileges, your installation of windows has some problem. But not due to "secret" stuff or whatever.

There is also a "built-in" administrator 'available'. You do things your way & I do it my way. My accounts have 'always' been as an "administrator", unlike in unix/linux where I can do "sudo" or become "root". I even disabled the login & password when starting the computers as I am the only person in my home.

The "built-in" administrator is hidden; found about the "built-in" administrator after some searching. I also found I am unable to even change my win 10 user account from 'administrator' to 'standard'.

[theducks]

You must have 1 (standard) Admin account. Admin still needs UAC permission to make Program level changes.
There is a Super Admin that you can invoke during Boot (same PW, but you need to jump thru hoops to even get there)

[alc4ever]

Originally Posted by BetterRed

Which variant - 32 bit or 64 bit?

Do you install calibre in the 'default' location -- 32 bit in C:\Program Files (x86)\Calibre2 or 64 bit in C:\Program Files\Calibre2 -- I'm assuming C: is the system drive.

BR

Calibre is installed at C:\Program Files\Calibre2

[hobnail]

Originally Posted by crane3

I also found I am unable to even change my win 10 user account from 'administrator' to 'standard'.

Likewise here, but I don't have a separate administrator account like I did previously with windows 7 and prior versions. So I'm guessing, in my case at least, it's because at least one account needs to have administrator privileges. I.e., if I were to make an account, admin, and give it administrator privileges then I could change my account to standard.

[BetterRed]

Originally Posted by alc4ever

Calibre is installed at C:\Program Files\Calibre2

Did you try Kovid's suggestion in post#17.

If had the problem, I'd uninstall calibre, ensure the C:\Program Files\Calibre2 directory was gone, and then run a light-touch registry cleaner before reinstalling calibre.

BR

[PeterT]

https://betanews.com/2021/11/20/micr...in-windows-11/ might be of interest