Curious - Install asks for a restart

BetterRed · 05-28-2019, 11:34 PM

Before starting an install, I always close calibre if its running, I never run it in the tray, I rarely use the server, and none of the secondary programs (book editor, viewer, command line programs etc) are running.

And I thought a calibre install did some checks the beginning of an install, and if any of its executables are running then it terminates the install.

But, after a couple of recent calibre upgrade installs (unsure if its all) I've received a popup telling me Windows needs to be restarted to complete the installation, with Yes and No buttons to restart now or not. Sorry I didn't capture it, but I assume it comes from the MSI Installer. I click No, move the install file to my installed software folder, and start calibre from taskbar (WinKey+4) - and I'm running the new version.

I have other programs that also ask for a restart after an 'install' - but if I don't restart I continue to see the 'old' version, and I won't see the new version until I do a restart (or signoff/on). But they are Windows enhancers that run at startup as tray applets.

So, I am curious as to what triggers the popup at the end of the install. And wondering if anyone else has been experiencing this in recent times - I use Windows 10 64 bit Pro version 1809.

It's not important - just wondering.

BR

BetterRed · 05-28-2019, 11:49 PM

PS : I've installed other applications in recent weeks (Notepad++, IrfanView, Evernote, Firefox, CCleaner, qtbittorrent) and none asked for a Windows restart - but nor were any of them MSI installs.

kovidgoyal · 05-29-2019, 12:30 AM

Short answer: nobody knows

Longer answer: windows pops up that dialog when it "thinks" the software needs a reboot. This can happen for all sorts of reasons, for example, at least historically, if the program launched another program, such as a browser window or an editor, and that browser window is still running at the time of upgrade.

BetterRed · 05-29-2019, 04:43 AM

I'll stop Firefox next time - had a couple of other inexplicable glitches that implicate Firefox. Problem is, none of them are readily reproducible.

When the new Edge arrives I'm going to try switching to it.

BR

kovidgoyal · 05-29-2019, 05:03 AM

as far as calibre is concerned provided you are sure you were not running any calibre programs while the upgrade was running, it is safe to ignore that message. And the installer only checks for calibre.exe not all the other various calibre programs.

05-28-2019, 11:34 PM	#1
BetterRed null operator (he/him) Posts: 21,660 Karma: 29711016 Join Date: Mar 2012 Location: Sydney Australia Device: none	Curious - Install asks for a restart Before starting an install, I always close calibre if its running, I never run it in the tray, I rarely use the server, and none of the secondary programs (book editor, viewer, command line programs etc) are running. And I thought a calibre install did some checks the beginning of an install, and if any of its executables are running then it terminates the install. But, after a couple of recent calibre upgrade installs (unsure if its all) I've received a popup telling me Windows needs to be restarted to complete the installation, with Yes and No buttons to restart now or not. Sorry I didn't capture it, but I assume it comes from the MSI Installer. I click No, move the install file to my installed software folder, and start calibre from taskbar (WinKey+4) - and I'm running the new version. I have other programs that also ask for a restart after an 'install' - but if I don't restart I continue to see the 'old' version, and I won't see the new version until I do a restart (or signoff/on). But they are Windows enhancers that run at startup as tray applets. So, I am curious as to what triggers the popup at the end of the install. And wondering if anyone else has been experiencing this in recent times - I use Windows 10 64 bit Pro version 1809. It's not important - just wondering. BR Last edited by BetterRed; 05-28-2019 at 11:51 PM.

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05-28-2019, 11:49 PM	#2
BetterRed null operator (he/him) Posts: 21,660 Karma: 29711016 Join Date: Mar 2012 Location: Sydney Australia Device: none	PS : I've installed other applications in recent weeks (Notepad++, IrfanView, Evernote, Firefox, CCleaner, qtbittorrent) and none asked for a Windows restart - but nor were any of them MSI installs.

05-29-2019, 12:30 AM	#3
kovidgoyal creator of calibre Posts: 45,251 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Short answer: nobody knows Longer answer: windows pops up that dialog when it "thinks" the software needs a reboot. This can happen for all sorts of reasons, for example, at least historically, if the program launched another program, such as a browser window or an editor, and that browser window is still running at the time of upgrade.

05-29-2019, 04:43 AM	#4
BetterRed null operator (he/him) Posts: 21,660 Karma: 29711016 Join Date: Mar 2012 Location: Sydney Australia Device: none	I'll stop Firefox next time - had a couple of other inexplicable glitches that implicate Firefox. Problem is, none of them are readily reproducible. When the new Edge arrives I'm going to try switching to it. BR

05-29-2019, 05:03 AM	#5
kovidgoyal creator of calibre Posts: 45,251 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	as far as calibre is concerned provided you are sure you were not running any calibre programs while the upgrade was running, it is safe to ignore that message. And the installer only checks for calibre.exe not all the other various calibre programs.

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