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).

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136
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19answers
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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 ...
8
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6answers
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How to enable 4GB in my Windows 7 64 bit?

I have the following machine configuration: Intel Core 2 Duo E6300 1 x 2048 MBytes memory chip 2 x 1024 MBytes memory chip 1 x Radeon HD 4870 Motherboard : Gigabyte 945P-S3 Windows 7 RTM 64-bit In ...
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8answers
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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 ...
25
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5answers
20k 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 ...
29
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8answers
14k 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 ...
12
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3answers
18k views

Can a 32 bit OS run in a 64 bit processor?

What's the difference between 32 bit OS and 64 bit OS? Can a 32 bit OS run in a 64 bit processor?
10
votes
2answers
2k views

Package managers for Windows [closed]

You might be familiar with Ninite. What I'd like to know is if there are good alternatives to that software for Windows. The features I expect: installs the latest version of software supports 64 ...
32
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7answers
6k 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 ...
6
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3answers
6k views

Windows Vista 32-bit to Windows 7 64-bit upgrade?

I have an old Vista box sitting around, and I'm thinking of upgrading it to Windows 7 64-bit, as it has 4gb of RAM. Well, I know that there's an "in-place" upgrade from Vista, but does it work from ...
9
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5answers
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Can I install windows 7 x64 in a VPC where the host is vista x86?

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9
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7answers
5k views

How to tell if a computer has a 64-bit CPU or OS

How you can check if your computer Has an x86 (32-bit) or x86-64 (64-bit) processor? Is running a 32 bit or 64 bit operating system?
3
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2answers
980 views

Install and run 32 bit on 64 bit machine

I want to make sure that on 64-bit Windows, 32-bit application can be installed/run without any issues? And it is guaranteed by Windows backward compatibility? For example, any application (e.g. ...
52
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10answers
63k 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
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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 ...
12
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6answers
3k 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 ...
3
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3answers
26k views

Unable to open IE 10 in 32-bit mode

I need to run IE 10 in 32-bit mode on 64-bit Windows 7 Enterprise N. When I run IE 10 from "C:\Program Files (x86)\Internet Explorer" I can see in task manager that I have only one process ...
6
votes
2answers
988 views

Can't find the right Ubuntu Server ISO for VirtualBox

I have been trying all morning to find the right Ubuntu Server (12.04) ISO to use for installing an Ubuntu guest OS on my VBox VM. Here are the relevant stats: Host Machine: AMD 64-bit Host OS: ...
6
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5answers
41k views

How to check whether my hardware is 64-bit capable in Windows?

My OS is 32-bit but I want to know if my hardware support 64-bit
4
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4answers
10k views

How do I get 16-bit programs to work on a 64-bit Windows? [duplicate]

Possible Duplicate: Why 64 bit OS can't run a 16 bit application? When trying to play an old game, Skyroads for instance, I get the following error message: The version of this file ...
22
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6answers
9k 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
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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.
10
votes
6answers
17k views

Ubuntu 64-bit vs 32-bit

Is it worth installing the Ubuntu 9.10 64-bit version over the 32-bit x86 version? I will get the ability to address more than 4 GB of memory, but other than that, how does the 64-bit version fare in ...
9
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7answers
11k views

Detect Windows Server version 32/64-bit in CLI

What's the best and quickest way to detect whether you're running a 32 or 64-bit version of Windows Server from the command line? (Cygwin is installed)
8
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6answers
6k views

Windows 7: Should I Install 64-bit or 32-bit Version? (x64 vs x86)

Deciding which Windows 7 version to install can be a difficult decision and can really limit what you can do with your system. Do you have any practical hints which could help decide which version to ...
2
votes
5answers
381 views

Memory sticks, 32 and 64 Bit OS

My current setup: Windows Vista, 32 bit 2 sticks of 1 GB Kingston HyperX 1333Mhz ram Asus P5K3 Deluxe Motherboard My Theoretical, temporary setup Windows Vista, 32 bit 4 sticks of 2 GB, 1333 ...
9
votes
8answers
60k views

How do I install Windows 7 64-bit on a Mac using Bootcamp?

Has anyone been able to install Windows 7 x64 under Bootcamp on a Mac? I was able to get the 32-bit version to install, but I cannot get x64 to install. The Mac doesn't seem to even want to boot the ...
19
votes
2answers
149k 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?
9
votes
1answer
236 views

Alternatives to Altaris/Symantec SVS

I use an old copy of Altaris SVS (link to lifehacker - Symantec gutted the old Altaris website) for testing applications - it lets me capture the changes one executable makes, or changes to a whole ...
7
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6answers
5k views

Why does my sytem only uses 3.2GB of my 4GM RAM?

I am using win 7 64 bit. I tried the solution given here, didn't help. David's answer makes me think this is futile. Is there anything else to try? Updates: Notice that I have a graphic card on ...
5
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1answer
14k views

Can I install Windows 7 64 bit on VirtualBox running on a Windows 7 32 bit OS?

Is it possible to install Windows 7 64 bit on VirtualBox running on Windows 7 32 bit?
2
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3answers
13k views

Is it possible to use a 32-bit driver on 64-bit Windows 7?

I know it's not possible to install a 32-bit driver in the traditional way, but I really cannot find a 64-bit driver for my memory card reader. Is there anyway I can somehow use this device with a ...
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?
2
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3answers
1k views

Tell the version of Windows XP (64-bits or 32-bits)

My laptop's CPU is the Intel P8600 (x86-64 architecture), and Dell pre-installed Windows XP SP3 on it. However I am not sure if the version of Windows XP is the 64-bit version or the 32-bit version; ...
7
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3answers
5k views

System32 and SysWOW64 on Windows 7

What is "SysWOW64" and how does it work? Are SysWOW64 and System32 both used/loaded into RAM during the Windows 7 boot?
5
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2answers
5k views

Can I legally downgrade from Win 7 64 bits to Win 7 32 bits? [duplicate]

Possible Duplicate: When reinstalling Windows 7, does the language, version, architecture (64-bit or 32-bit) or source (OEM, retail, or MSDN) matter? Tired of the unstable Win 7 64bit I got ...
4
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3answers
8k views

8.00GB RAM (3.22GB usable) in Windows 7 x64

I have set up Windows 7 Ultimate 64-bit on my PC. I have 8GB RAM and my BIOS states the correct amount (8192MB), but Windows (System Manager) says I have 8.00GB (3.22GB usable). give me a solution. ...
11
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8answers
2k 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 ...
7
votes
3answers
19k views

command line text editor like “edit” for windows x64 [duplicate]

is there any command line editor like the old edit for windows x64?. I exclude VIM because i don't like the mode behavior. I would like a editor were i could write just as i write in any application. ...
12
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3answers
11k views

Is my install 32 or 64bit?

I'm trying to find out if my Ubuntu install is 32 or 64bit. The best I can find is "i686" does this mean its 32 bit? Whats the correct way of finding out if the Ubuntu installed on my laptop is 32 ...
7
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2answers
6k views

Getting 'running low on memory errors' on Windows 7 64-bit with 8GB RAM

I have a new Dell laptop running Windows 7 64-bit with 8GB RAM. If I leave the system running overnight I start getting low memory errors the next day. Looking at Task Manager it shows 6.27GB used but ...
5
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3answers
5k views

Mac OS X: How can I tell if I'm in 64-bit mode?

I can't remember how to see if my OS X (10.6) installation is running in 32-bit or 64-bit mode.
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8answers
50k views

Windows 7 x64 support for Intel GMA 3650 (or GMA 3600)

I recently purchased an Intel D2700 MUD motherboard and I cannot find drivers for the Win7 x64 integrated graphics (Intel GMA 3650 aka PowerVR sgs545). The accompanying CD contains Win7 x32 version ...
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3answers
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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 ...
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1answer
2k views

Vertex 3 with Asus P8P67 Pro (B3) locks up

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3
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1answer
2k views

Can't boot OS from USB drive, showing black screen with blinking cursor

I have a problem with booting from a USB flash drive. I have Acer TimelineX 3820TG. I have Windows 7 Home from Acer and I installed Mandriva OS from USB(from USB because this Acer doen't have a DVD ...
1
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3answers
8k views

How to fix the MBR without overwriting HD and without Recovery CD

My Drives [c:/, HP_Tools (E:/) and Recovery (D:/)] have all turned into simple volumes due from trying to delete space from c:// and creating another partition to backup my files, so I can recover my ...
1
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2answers
6k views

What are some tips on reducing the disk space used by Windows 7?

Does anyone have any tips on reducing the space used by Windows 7? So far I've got: Empty Recycle Bin Run Disk Cleanup Wizard Use 'Programs & Features' control panel to uninstall unneeded ...
7
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4answers
1k views

What happens when you install > 4GB of RAM in a computer with a 32-Bit OS?

So I'm a programmer and I'm not a complete idiot so I know exactly why you can't access memory where you can't have pointers. But I've never tried this and I don't think I ever will because it seems ...
4
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2answers
1k views

Upgrade from Windows Vista (x64) to Windows 7 (x64)

Is it possible to upgrade from Windows Vista Home Premium (x64) to Windows 7 Home Premium (x64) without losing the current programs, their settings and the data in the hard disk? If possible, how much ...
4
votes
1answer
3k views

Windows 7 Processes starting as Suspended

All of a sudden, process that I start from the windows desktop are starting as suspended. For example, I have my Outlook pinned to the start bar. When I click on it the first time, The mouse cursor ...