Does Calibre Run in Win7 64-bit?

jangell2 · 07-14-2011, 01:08 PM

I will soon be installing win7 64 bit. Does Calibre run in 64 bit? It will be a clean install and will wipe out my hard drive. What folders/files do I save before the install?

gweminence · 07-14-2011, 01:37 PM

I don't think calibre executable itself is 64 bit, but it runs just fine in Win 7 64. That's what I'm using.

As for what to save, save the entirety of your library folder. So if the top folder is "Your Library", either back it up somewhere, or copy/paste to a second hard drive, dropbox, sugarsync, etc.

graycyn · 07-14-2011, 01:50 PM

I'm running it in Win7 64-bit, no issues here either.

theducks · 07-14-2011, 02:03 PM

win 7 64 on a AMD

kovidgoyal · 07-14-2011, 02:43 PM

See http://manual.calibre-ebook.com/faq....ter-to-another

jangell2 · 07-14-2011, 03:37 PM

Thanks guys. Since posting, I have discovered an obscure program or two that I would like to have, that I cannot verify will run in 64 bit. I am going to reinstall, since there are so many weeds on my hard drive, but it will be 32 bit.

It was worth posting here just to verify how to transfer my files over.

PeterT · 07-14-2011, 03:48 PM

One option is always to run 64 bit, but then to have a virtual machine; either MS's virtual PC OR vmware Player to give you a 32 bit environment.

jangell2 · 07-14-2011, 04:07 PM

Quote:

Originally Posted by PeterT

One option is always to run 64 bit, but then to have a virtual machine; either MS's virtual PC OR vmware Player to give you a 32 bit environment.

Is there a real benefit to running 64 bit besides addressing more memory? I only have 4gb. Photoshop is the program I have that might need 64bit, but it's been running ok under 32. Would I get more speed?

PeterT · 07-14-2011, 04:54 PM

With 32 bit Windows, I do believe that the full 4 GB of RAM can not be used.

JSWolf · 07-14-2011, 05:17 PM

Without any mods to the OS, a 32-bit Windows is crippled to address up to 3GB of ram. You won't be able to access the 4th GB of ram in your system. Going 64-bit will give you full access to all 4GB of ram.

jackastor · 07-14-2011, 10:16 PM

Quote:

Originally Posted by jangell2

I will soon be installing win7 64 bit. Does Calibre run in 64 bit? It will be a clean install and will wipe out my hard drive. What folders/files do I save before the install?

AMD Phenom six core 16 gigs of memory, 2 gig video and 3 tb of hdd runs fine as well here windows 7 64 bit

regards

jack

jackastor · 07-14-2011, 10:17 PM

Quote:

Originally Posted by PeterT

With 32 bit Windows, I do believe that the full 4 GB of RAM can not be used.

You are correct. Its also a slower system as well. So even if you only had 2 gigs of memory it would run better and faster on a 64 bit operating system

good luck

lestatar · 07-14-2011, 11:54 PM

@OP: Another confirmation: calibre runs perfectly on my 2 Intel Win7 64bit systems, Home Premium and Ultimate.

PeterT · 07-15-2011, 12:27 AM

I also believe there could be a theoretical slowdown / increased memory usage with 64 bit vs 32 bit, based on the size of operating system's data structures used to reference virtual addresses; they have to double in size..... but we are at this point splitting hairs!

07-14-2011, 01:08 PM	#1
jangell2 Zealot Posts: 143 Karma: 10 Join Date: Aug 2010 Device: Kindle	Does Calibre Run in Win7 64-bit? I will soon be installing win7 64 bit. Does Calibre run in 64 bit? It will be a clean install and will wipe out my hard drive. What folders/files do I save before the install? __________________ johnny www.teamfurr.org

07-14-2011, 02:03 PM	#4
theducks Staff to 4 Cats Posts: 10,743 Karma: 2485850 Join Date: Aug 2009 Location: The (original) Silicon Valley, USA Device: Galaxy Tab 2,Black Astak PEz, K4NT(now Wifes)	win 7 64 on a AMD __________________ Using: Ubuntu(32 bit):Oneric,Precise and XPpro SP3, W7HP(64)- - Libre Office w/Writer2EPUB

07-14-2011, 02:43 PM	#5
kovidgoyal Creator of calibre Posts: 22,517 Karma: 2944574 Join Date: Oct 2006 Location: Mumbai, India Device: Various	See http://manual.calibre-ebook.com/faq....ter-to-another __________________ Get calibre Notice to all: I can not provide assistance with DRM removal, for legal reasons, so please do not contact me about it.

07-14-2011, 03:37 PM	#6
jangell2 Zealot Posts: 143 Karma: 10 Join Date: Aug 2010 Device: Kindle	Thanks guys. Since posting, I have discovered an obscure program or two that I would like to have, that I cannot verify will run in 64 bit. I am going to reinstall, since there are so many weeds on my hard drive, but it will be 32 bit. It was worth posting here just to verify how to transfer my files over. __________________ johnny www.teamfurr.org

07-14-2011, 03:48 PM	#7
PeterT Wizard Posts: 4,220 Karma: 31947112 Join Date: Nov 2007 Location: Toronto Device: Wifi (mine); Touch (wife + mine); iTouch (wife)	One option is always to run 64 bit, but then to have a virtual machine; either MS's virtual PC OR vmware Player to give you a 32 bit environment. __________________ Peter

07-14-2011, 01:37 PM	#2
gweminence Fat Guy Posts: 383 Karma: 24165 Join Date: Jun 2010 Device: Kindle 3	I don't think calibre executable itself is 64 bit, but it runs just fine in Win 7 64. That's what I'm using. As for what to save, save the entirety of your library folder. So if the top folder is "Your Library", either back it up somewhere, or copy/paste to a second hard drive, dropbox, sugarsync, etc.

07-14-2011, 01:50 PM	#3
graycyn Guru Posts: 652 Karma: 1381150 Join Date: Aug 2010 Location: NE Oregon Device: Sony 950, 350 & T1, SGP 5.0, Samsung Galaxy Note	I'm running it in Win7 64-bit, no issues here either.

07-14-2011, 04:54 PM	#9
PeterT Wizard Posts: 4,220 Karma: 31947112 Join Date: Nov 2007 Location: Toronto Device: Wifi (mine); Touch (wife + mine); iTouch (wife)	With 32 bit Windows, I do believe that the full 4 GB of RAM can not be used. __________________ Peter

07-14-2011, 05:17 PM	#10
JSWolf Mobile Reader Geek Posts: 34,227 Karma: 13801376 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Sony Reader PRS-650, iPad	Without any mods to the OS, a 32-bit Windows is crippled to address up to 3GB of ram. You won't be able to access the 4th GB of ram in your system. Going 64-bit will give you full access to all 4GB of ram. __________________ Jon 2013 Reading List

07-14-2011, 11:54 PM	#13
lestatar LB's lolz Mutt Minion Posts: 2,902 Karma: 5700001 Join Date: Jun 2011 Location: Hong Kong now but NYC forever Device: Kindle3, GalaxyTab, BB Bold9700, BB 8300, Sony Clie, Palm Vx, Palm III	@OP: Another confirmation: calibre runs perfectly on my 2 Intel Win7 64bit systems, Home Premium and Ultimate.

07-15-2011, 12:27 AM	#14
PeterT Wizard Posts: 4,220 Karma: 31947112 Join Date: Nov 2007 Location: Toronto Device: Wifi (mine); Touch (wife + mine); iTouch (wife)	I also believe there could be a theoretical slowdown / increased memory usage with 64 bit vs 32 bit, based on the size of operating system's data structures used to reference virtual addresses; they have to double in size..... but we are at this point splitting hairs! __________________ Peter

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