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).

learn more… | top users | synonyms (4)

5
votes
3answers
7k 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.
6
votes
10answers
58k views

How can I determine whether my processor is 32-bit or 64-bit?

How can I determine whether my processor is 32-bit or 64-bit? My processor is AMD Phenom 8450 triple-core.
5
votes
1answer
11k views

Installed Memory (RAM): 8GB (4GB Useable)

I have 4X 2GB RAM sticks installed, Windows 7 Ultimate x64 shows "Installed Memory (RAM): 8GB (4GB Useable)" in the system information. The motherboard says it supports up to 16GB of memory. I had ...
4
votes
1answer
3k views

Vertex 3 with Asus P8P67 Pro (B3) locks up

And by 'locks up' I mean completely locks up. Even the numlock light won't toggle. This happens at completely random times. I have updated the BIOS of the MoBo and the firmware of the SSD numerous ...
3
votes
1answer
4k 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 ...
2
votes
2answers
4k views

Can't boot a 64bit Windows USB from a tablet originally installed with 32-bit OS

I have an Acer Iconia W4-820 Tablet which has an Intel Atom Z3740 64-bit CPU, but the Windows version installed on it is 32-bit. I'm trying to install 64 bit Windows on it by making a bootable USB ...
1
vote
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 ...
1
vote
3answers
12k 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 ...
10
votes
9answers
24k views

For a PC with 1GB RAM, should I install 32 Bit or 64 Bit Windows 7?

I would like to install Windows 7 Ultimate on a PC with 1GB of RAM. What's better for me? The 32 or 64-bit version?
9
votes
4answers
2k 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
votes
1answer
571 views

How do I determine the cause of resuming from hibernation in Windows 7?

My notebook sometimes resumes from hibernation without any apparent reason. This happens only when its plugged in power, LAN connection does not influence it. Is there some log that would tell me ...
4
votes
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 ...
3
votes
6answers
3k views

Windows 7 on a 64-bit computer

I read on Wikipedia that Windows 7 on a 64-bit PC needs twice as much RAM as on a 32-bit PC. I understand why is that: every number stored in memory takes 8 bytes rather than just 4. That, in simple ...
2
votes
2answers
503 views

Why is IEx64 not the default for x64 Windows?

I don't think I've seen any answers to this question, but I'm curious as to why, when you have a 64-bit OS installed (ex: Vista x64), IE defaults to the 32-bit version? Are there drawbacks to using ...
2
votes
4answers
294 views

advantage of 64 bit os on system with only 2Gb [duplicate]

Possible Duplicate: 32-bit vs. 64-bit systems Im using windows 7 ultimate 32-bit. With 64-bit processor. Will I get any performance benefits if ever I upgrade to 64-bit windows 7, with the ...
1
vote
2answers
1k views

WIndows 7 64 bit reporting 3.00 gb usable memory with 4.00 gb installed [duplicate]

Possible Duplicate: How to enable 4GB in my Windows 7 64 bit? I have a computer that I have upgraded to Windows 7 Professional 64bit. It has an intel D945GB1 motherboard, Pentium D Dual core ...
0
votes
2answers
19k views

How to fix missing DLLs and corrupt system files after updating Windows-7?

I have a dual boot setup (Ubuntu-Linux and Windows-7 Pro 64-bit) on my laptop. I mostly do my work in Ubuntu, but every once in a while I have to use Windows. A few days ago, I booted into Windows ...
25
votes
2answers
30k 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 ...
28
votes
7answers
55k views

Terminal emulator with split panes for Windows 7 (64 bit)

I'm looking for a terminal emulator on Windows 7 (64 bit) with a specific feature: to be able to split the command prompt window into multiple panes. It's a great feature of Terminator for gnome, I ...
11
votes
4answers
44k views

Does Apple Magic Mouse fully work on Windows 7 x86/x64?

I would like to know if Apple Magic Mouse works on Windows 7 (x86/x64) on non-Apple computers. Here are some checklists: x64 compatibility left click right click middle button? vertical scroll ...
17
votes
4answers
32k 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 ...
9
votes
5answers
65k 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
151k 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?
13
votes
9answers
7k 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. ...
13
votes
6answers
56k views

Different PATH environment variable for 32bit and 64bit Windows - is it possible?

Is it possible to have whole or part of PATH environment variable specific to the type of running process's image (32bit/64bit)? When I run some app from within 64bit cmd.exe I would like to have it ...
10
votes
3answers
66k views

How can I run an exe in 32-bit mode on a 64-bit machine?

I have an executable that works fine when run on 32-bit windows but breaks when run on 64-bit windows. Is there some way I can force it to run in 32-bit mode on a 64-bit machine? I don't have ...
9
votes
2answers
159k views

Windows 7 - Windows Update Hangs On “Checking For Updates” [duplicate]

Today I installed a fresh copy of Windows 7 Home Premium x64 SP1. For some reason, it will just not update. I try to run Windows Update but all it does is hangs at "Checking for updates". I even let ...
4
votes
5answers
13k views

How to force a “confirm shutdown” in Windows 7 [duplicate]

Possible Duplicate: Windows7: Howto force a “do you really want to shutdown?” dialog Whenever I choose Shutdown from the Start Menu, Windows 7 begins shutting down immediately. This ...
13
votes
4answers
25k 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 ...
8
votes
3answers
29k 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. ...
5
votes
4answers
2k views

What mode do modern 64-bit Intel chip PCs run the boot sector in?

I know with older machines like 286s, the first 512 bytes loaded from the first sector of the boot drive to 0000:7C00 in memory were run in 16-bit real mode, but what about modern 64-bit architectures?...
5
votes
5answers
6k views

Pin to taskbar icon gets (2) appended

After upgrading from Vista to Windows 7, I find that I cannot Pin the application "Shiretoko (64-bit)" to the taskbar without it getting a label of "Shiretoko (64-bit) (2)". I don't have any other ...
18
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?
16
votes
5answers
9k 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 ...
14
votes
4answers
15k views

Is it possible to have 64 bit guest OSes run in Virtual PC RC on Windows 7?

Is it possible to have 64 bit guest OSes run in Virtual PC RC on Windows 7? I tried to install a Windows 7x64 Ultimate guest in Virtual PC, on a host PC running Windows 7x64, but got the following ...
12
votes
3answers
10k views

top command in cygwin?

I am starting to use Cygwin(64) on my Windows 8 laptop, however, the top command is not recognized. I have read online that I need to get the procps package, but it is not available on the 'Cygwin ...
8
votes
6answers
13k 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 ...
6
votes
4answers
25k views

DVD ROM Keeps Spining at random times, especially when starting windows explorer

I didn't had this problem before, recently I bought a SSD and installed Windows 7 x64 on it, and now the DVD sometimes spins without reason, it has no CD in it (this makes a bit of a lag). EDIT: it ...
2
votes
4answers
64k views

Keyboard doesn't let me press certain keys at the same time

I'm not sure how to word the problem other than I can't use certain keys at the same time. For example, when playing games that require you to use the arrow keys to move and jump/duck I am unable to ...
1
vote
1answer
394 views

Windows 7 webcam not functioning with warning message “Camera is used by other application”

A friend of mine told me her webcam is not functioning during her Skype call session. Symptoms/tests: Running the Skype video test gives the warning "Camera is used by other application Searching ...
19
votes
3answers
31k views

Can I change the PATH environmental variable in Windows 7 without restarting?

Is there anyway to change the PATH environment variable (or variables in general) on Windows 7 Exterprise (64 bit) and have it take effect in PowerShell or the command prompt (cmd.exe) without ...
9
votes
8answers
14k views

Merging “Program Files” and “Program Files (x86)” folders in Windows 7 64-bit

Windows 7 64-bit version installs 32-bit programs to Program Files (x86) folder, and 64-bit programs to Program Files folder. Of course, Microsoft must have a reason for doing that, but as a user I ...
8
votes
2answers
19k views

How to find the source of this BSOD? How to fix it?

I occasionally (always at the least convenient moment...) receive this BSOD on my Windows 7 desktop PC: Problem signature: Problem Event Name: BlueScreen OS Version: 6.1.7601.2.1.0.256.1 ...
7
votes
3answers
40k views

Visual Studio 2010 fails to install with “Error occurred during setup”

I'm trying to install Visual Studio 2010 on Windows 7 64-bit and I keep getting following screen: I tried to install also Visual Studio 2008 with similar result. I'm starting to think it might be ...
5
votes
3answers
8k views

Add Notepad to Right-click new menu in Windows 7

Here's what my right-click menu looks like: There used to be a "New Text Document" item there but it's gone. Here's my registry value: Any idea how to fix it?
4
votes
5answers
6k views

How Does One Remove Duplicate Text Lines From Files Larger Than 4GB?

I am looking for an open source (possibly 64 bit) windows text editor that will allow me to remove duplicate lines from an extremely large (4GB+) text file. What do you use to remove duplicate lines ...
4
votes
2answers
10k views

Can I use a Windows 7 Professional 32-Bit OEM licence to install the 64-Bit version, too? [duplicate]

Possible Duplicate: When installing Windows 7 or Vista, does the language, version, architecture (64-bit or 32-bit) or source (OEM, retail, or MSDN) matter? I plan to buy a Notebook that does ...
3
votes
1answer
7k views

Downgrade from Windows 7 Ultimate to Home Premium?

A few months ago, I acquired a Windows 7 Ultimate product key and updated from Home Premium to Ultimate. Well, now I get the "This copy of Windows is not genuine" message. I have the Home Premium ...
3
votes
3answers
5k views

12GB of RAM only 8GB is usable on Windows 7 64-bit

I'm running a Dell Studio XPS, with quad core processor, two threads per core, with 12GB of installed RAM. According to Windows, only 7.99GB of that RAM is usable. The really weird part is, up until ...
2
votes
1answer
1k views

MSVCR100.dll missing error even its there

I know that MSVCP100.dll, is part of the Microsoft Visual C++ runtime libraries, so I have them in my PC too. Everything was working fine but suddenly this error start happening when I open my ...