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 Addict Posts: 296 Karma: 1618384 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?

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07-14-2011, 01:37 PM	#2
gweminence Fat Guy Posts: 408 Karma: 24165 Join Date: Jun 2010 Device: Kindle Voyage	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 Wizard Posts: 1,581 Karma: 11380098 Join Date: Aug 2010 Location: NE Oregon Device: Kobo Sage, Pocketbook Era, Kobo Forma, Kindle Oasis 2	I'm running it in Win7 64-bit, no issues here either.

07-14-2011, 02:03 PM	#4
theducks Well trained by Cats Posts: 30,889 Karma: 59840450 Join Date: Aug 2009 Location: The Central Coast of California Device: Kobo Libra2,Kobo Aura2v1, K4NT(Fixed: New Bat.), Galaxy Tab A	win 7 64 on a AMD

07-14-2011, 02:43 PM	#5
kovidgoyal creator of calibre Posts: 45,164 Karma: 27110894 Join Date: Oct 2006 Location: Mumbai, India Device: Various	See http://manual.calibre-ebook.com/faq....ter-to-another

07-14-2011, 03:37 PM	#6
jangell2 Addict Posts: 296 Karma: 1618384 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.

07-14-2011, 03:48 PM	#7
PeterT Grand Sorcerer Posts: 13,281 Karma: 78869092 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	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.

07-14-2011, 04:54 PM	#9
PeterT Grand Sorcerer Posts: 13,281 Karma: 78869092 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	With 32 bit Windows, I do believe that the full 4 GB of RAM can not be used.

07-14-2011, 05:17 PM	#10
JSWolf Resident Curmudgeon Posts: 79,005 Karma: 144284074 Join Date: Nov 2006 Location: Roslindale, Massachusetts Device: Kobo Libra 2, Kobo Aura H2O, PRS-650, PRS-T1, nook STR, PW3	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.

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 Grand Sorcerer Posts: 13,281 Karma: 78869092 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	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!

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