64-bit refers to processors that have a word length (the fundamental data type of registers and memory transfer operations) of 64 bits, allowing each word to hold 2^64 = 1.845 x 10^19 discrete values (over 4 billion times as much as a conventional 32-bit word).
106
votes
19answers
17k views
32-bit vs. 64-bit systems
What are the differences between 32-bit and 64-bit systems?
If you have used both of them, what kind of sharp differences have you experienced?
Would it be a problem to use 32-bit programs on ...
104
votes
10answers
27k views
Why does 64-bit Windows need a separate “Program Files (x86)” folder?
I know that on a 64-bit version of Windows the "Program Files" folder is for 64-bit programs and the "Program Files (x86)" folder is for 32-bit programs, but why is this even necessary?
By ...
52
votes
0answers
6k views
32 vs 64 bits… what's the big deal?
Why is it considered to be such a big deal to have a 64-bit computer? Why does it "change everything?" Why do applications need to be designed differently between 32- and 64-bit platforms?
And, on ...
49
votes
3answers
3k views
Why is the 64-bit version of Windows bigger than the 32-bit version?
The difference in size for the Windows 8 Consumer Preview ISO images, between the 64 bit and the 32 versions is 800 Mb or a difference of 24%.
I've never seen a difference so large.
Why is there ...
37
votes
7answers
38k views
Quick way to tell if an installed application is 64-bit or 32-bit
I've got a third-party application (in this case Cognos Data Manager) installed on 64-bit Windows Server 2003.
Is there a quick way to determine if an application has been built/compiled as a 64-bit ...
36
votes
1answer
2k views
Do 64bit software/applications require more RAM than their 32bit counterparts?
I just saw these minimum requirements for a game:
Memory: 2GB for 32-bit OS or 4GB for 64-bit OS
Why does the 64bit OS require more RAM than its 32bit counterpart?
34
votes
3answers
2k views
What is the difference between “Program Files” and “Program Files X86”?
In Windows 7 there are two folders, "Program Files" and "Program Files X86". What is difference between them?
Where does a 64 Bit program get installed?
33
votes
8answers
18k views
ShellExecute failed (2) error for Notepad++ on Windows 7 64bit
ShellExecute failed (2): Is this command correct? "C:\Program Files (x86)\Notepad++\notepad++.exe [location of file to edit]
I seem to have some issue with RIGHT CLICK > Edit with Notepad ++. ...
33
votes
10answers
2k views
Should I install 64-bit versions of operating systems?
With the release of Windows 7 coming up, 64-bit operating systems have caught my attention.
What are the main advantages and disadvantages of installing 64-bit Windows 7? What type of compatibility ...
29
votes
7answers
4k views
Other benefits of 64-bit OS apart from memory expansion?
I'm trying to convince somebody of the benefits of switching to a 64-bit OS but I'm having a hard time finding arguments other than "you can use more than 3GB RAM". Are there any other ...
27
votes
8answers
10k views
Is there any benefit from installing Windows 7 64-bit when you have less than 4GB or RAM?
I've recently purchased Windows 7 Ultimate. I have an AMD Athlon64 X2 5000+ with 2GB DDR2 RAM. I know RAM has gotten much cheaper, I know, I know, but I am not going to be able to upgrade my RAM for ...
24
votes
7answers
4k views
How important is having 64-bit programs on 64-bit OS?
I recently upgraded to 64-bit OS(Windows 7) from my old 32-bit version. I noticed that while several applications are available in 64-bit(e.g. DC client, Tortoise SVN, Graphics driver), many are still ...
23
votes
9answers
61k views
Kill a Process which gives access denied
Sometimes I need to kill a process which is giving me "Access denied" when trying to use the task manager or Process Explorer to kill. I am using Windows 7 64bit. I need to be able to kill such a ...
22
votes
14answers
34k views
When are we going 128-bit? How it will be? What gets better? [closed]
With the launch of new 64-bit OS and processors, we can say we already are in the 64-bit age. So, what's the next step? 128-bit.
What are the 128-bit processors already available?
Which operating ...
21
votes
6answers
6k views
Is it possible to run an old 16-bit DOS application under Windows 7 64-bit? [duplicate]
Possible Duplicate:
Why 64 bit OS can't run a 16 bit application?
How do I get 16-bit programs to work on a 64-bit Windows?
Here at work my new development machine is Windows 7 64-bit ...
19
votes
4answers
1k views
Do I need to run defrag on an SSD? [duplicate]
Possible Duplicate:
Do SSDs suffer from fragmentation?
Is there an advantage to it? I mean, SSD is essentially random access memory.
19
votes
2answers
148k views
Where do I download Java development binaries (JDK) for Windows 7 64-bit?
I am trying to install a Java development environment on Windows 7 64-bit, but I am unable to find a suitable install. Is there one available?
18
votes
5answers
15k views
Why 64 bit OS can't run a 16 bit application?
Why is it that a 32 bit OS that is installed on a 64 bit CPU can run old DOS 16 bit applications, but if you install a 64 bit OS it can't run those applications directly and need some sort of ...
17
votes
3answers
481 views
Is there a significant limitation on useable software on a 64-bit Windows machine?
I have a 32-bit laptop that I've had for like two years. I'm getting a new one now, and I'm now noticing that lots of laptops come with Windows 7 64-bit. I've always heard that it's harder to find ...
17
votes
2answers
976 views
Desktop applications are unable to launch my browser in Windows 8
I have a fresh copy of Windows 8 Pro installed from MSDN. I have Google Chrome installed (stable channel) and it is set as my default browser. I even went into Control Panel > Default Programs to ...
16
votes
8answers
153k views
When installing additional printer 32-bit drivers fails on Windows 7 64-bit I get the error “Selected printer driver not found”, what should I do?
I've successfully installed Windows 7 (x64) and drivers for my Canon MP510, and have no problem printing with this setup.
There is another PC in the network running XP SP3, and I want to share the ...
16
votes
7answers
31k views
How to disable jusched.exe on Windows 7 64-bit?
I have recently purchased a new laptop from an OEM with Windows 7 64-bit. This system came pre-installed with (among other stuff) the Java Runtime Environment (64bit). This has put the "jusched.exe" ...
15
votes
8answers
1k views
Should I choose 32 or 64 bit for Linux?
I own a Linux workstation which currently has 4 GB of RAM and planning to go for 8 GB in the near future. CPU is a Core2Quad Q9550.
Should I install a 32 or 64 bit variant of Linux?
15
votes
2answers
20k views
Running Java7 in Chrome for Mac OS X (requires 64bit?
My home banking system requires Java for logging onto the bank - see https://www.nemid.nu/ for a description of the system (in Danish only).
This worked fine in Chrome under Mac OS X until recently ...
15
votes
1answer
2k views
How to run a minimal Linux inside a running 64-bit Windows 7
On my previous Windows Vista laptop, I used to run Portable Ubuntu Remix for Windows, which is based on coLinux, like the similar andLinux. This worked fairly well with limited system resources (a ...
14
votes
7answers
28k views
How to open a file for editing in Administrator mode?
I have .config files set to open in Notepad++. The files I edit are typically in protected locations (e.g. c:\windows\, c:\program files..., etc..) thus requiring administrator access.
I'd like to ...
14
votes
2answers
13k views
Windows 7 x64 Pro not indexing PDF content?
In an attemp to get rid of all the paper clutter that I receive each day, I started scanning and ORCing all my important documents last year. I was using Windows Desktop Search on Vista to index my ...
14
votes
4answers
13k views
How do I capture a video of my Windows 7 desktop in VLC?
I used to be able to capture a video of my desktop in Windows 7 in an older version of VLC. But they've recently changed the UI and I can't seem to work out now how to record my desktop in the latest ...
13
votes
4answers
2k views
Why do most Windows 7 laptops come with the 64 bit version?
It seems increasingly popular for laptop manufacturers to preinstall the 64 bit version of Windows 7 on laptops. Whilst there are well understood benefits of 64 bit OS over 32 bit, how much of that is ...
13
votes
2answers
25k views
How to reinstall GRUB2 EFI?
After successfully updating my bios, something went wrong and I ended up with a blinking cursor on the top left corner of a black screen. No errors, no nothing. The bios now only listed a SATA:Â ...
13
votes
4answers
30k views
Huh? JDK not found? (on Windows 7 64-bit)
I am setting up a development environment for the latest Android 2.3 on a fresh install of Windows 7 64-bit.
I first installed the 64-bit JDK 6 (jdk-6u23-windows-x64.exe).
Then, I installed 64-bit ...
12
votes
6answers
3k views
Windows XP: 4GB to 16GB RAM upgrade
I'm on a 32 bit OS Windows XP Home–will be upgrading to a 64 bit XP Pro–and I'm upgrading my RAM to 16GB. Should I see a difference?
I typically compress a ton of files at one time. The 32 bit @ 4GB ...
12
votes
6answers
2k views
What is the difference between 64-bit and 32-bit Operating systems? [duplicate]
Possible Duplicate:
32-bit vs. 64-bit systems
I know that there are 2 types of OSs, 64 bit and 32 bit What is the main differences between them?
And if I am buying a new laptop, which one ...
12
votes
9answers
5k views
Too much memory getting used
I have been feeling this way for a while, looking at task manager mentally ballparking how much physical memory should be in use, and noticing a large disparity. I finally got around to measuring it. ...
12
votes
2answers
4k views
How to tell if linux process is 64bit
Given the pid of a process that's running on a x64 linux, how do I tell if it's running a 32 or 64 bit binary?
I can look at the binary it's running out of 'ps' and do a file on that but I was ...
11
votes
6answers
63k views
Cisco VPN Client on Windows 7 64-bit?
I just ordered a new Lenovo laptop with Windows 7 64-bit, and I heard that it doesn't support Cisco's VPN client. The main work around that I saw: use XP mode.
Has anyone done this? Does it work, ...
11
votes
1answer
19k views
Can Windows Virtual PC run a 64-bit OS?
I'm running Windows Virtual PC (RC) on a Windows 7 (RTM) 64-bit host. When I create a new virtual machine an try to install 64-bit Windows 7 on that VM, I get "this CPU is not compatible with 64-bit ...
11
votes
5answers
7k views
Bare-metal virtualisation for the desktop
What knowledge exists about bare-metal virtualisation products?
I'm interested in building a new desktop machine for home. I've been looking at the Intel Quad Core processors and I'd like to put 8 GB ...
11
votes
3answers
24k views
Upgrade Ubuntu from 32 to 64 bit edition
Is there a way to upgrade my 32-bit version of Ubuntu to 64-bit version? I use Ubuntu 9.10.
If there is no simple way, what if I simply copy my home and /etc directories to new installation, will it ...
11
votes
4answers
15k views
How do I know my laptop is 64-bit compatible?
I recently plan to buy a new laptop to run a 64-bit OS, but a friend told me that my current laptop is already 64-bit.
How can I verify if my laptop is ready to load a 64-bit OS or not?
Here is the ...
11
votes
5answers
6k views
Windows 7 (x64) memory usage climbs to 90%+ while system is idle?
I have windows 7 with 4GB of RAM. When the system starts from a fresh boot I start with about 33% usage. However, if I walk away with my PC idle for a few hours, or over night, my PC typically climbs ...
11
votes
1answer
8k views
Is my Windows 7 x86 license key valid for a x64 installation of Windows? [duplicate]
Possible Duplicate:
When reinstalling Windows 7, does the language, version, architecture (64-bit or 32-bit) or source (OEM, retail, or MSDN) matter?
I've just got a new laptop with Windows ...
10
votes
8answers
68k views
Why is all my extra RAM marked as “hardware reserved” in Windows 7?
I have a new HP Z800 Workstation, running Windows 7 Enterprise 64 bit. Z800 Specs are here.
The machine has 4GB of RAM -- windows reported 1.99GB available, 2GB was "hardware reserved". I added ...
10
votes
8answers
1k views
Pros and cons of 64bit vs 32bit Windows
What are the advantages and disadvantages of the two types of system? I know that 64bit allows more RAM then the 3-and-a-bit used by 32bit, but what other differences would you expect to see? I am ...
10
votes
4answers
7k views
How to check if a binary is 32 or 64 bit on Windows?
So, I need to do just that before I move the program to 32bit machine and experience a spectacular failure. Is there an easy way to do this?
10
votes
3answers
1k views
Why can't Windows 7 64 bit run 32 bit programs?
From what I understand of it, the architecture hasn't changed as much as it did from 16 bit to 32 bit so why do we need XP mode and the like to run 32 bit apps in Windows 7 64 bit?
Or have I ...
10
votes
5answers
14k views
How to check whether my OS is 64-bit or 32-bit?
What is the best way to determine whether my OS is 64-bit or 32-bit ?
Assume that, I directly on some os & I am going to install a software on it. But how to determine, whether OS is 32-bit or ...
10
votes
1answer
8k views
How can I run a 32-bit app on 64-bit OSX 10.7.2?
I have an app that only exists a 32bit version. In order to use it, I used to press 2 & 3 together before booting the Mac, so it'll run in 32bit mode. However, some apps (64bit version that ...
10
votes
4answers
1k views
32 bit application memory use in 64 bit operating system.
If my operating system is 64 bit, can my 32 bit applications use 64 bit memory (> 3.5GB)?
10
votes
3answers
16k views
Is Truecrypt/Macfuse supported on Snow Leopard with 64-bit kernel?
TC runs, but I get this error when trying to mount a volume:
Failed to load
/Library/Filesystems/fusefs.fs/Support/fusefs.kext
- (libkern/kext) link error.
I've seen various posts talking ...
