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Questions tagged [64-bit]

Refers to processors where data are stored in 64-bit registers. Use for questions about hardware or software only if 64-bit architecture is central to the question. For questions comparing 32 vs. 64 bit architecture, use [32-vs-64-bit] instead of the individual [32-bit] and [64-bit] tags.

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382 votes
19 answers
238k views

If 32-bit machines can only handle numbers up to 2^32, why can I write 1000000000000 (trillion) without my machine crashing?

32-bit computers can only store signed integers up to 231 - 1. This is why we have run out of IPv4 addresses and have entered the 64-bit era. However, the number 231 - 1 (2,147,483,647) is not as ...
286 votes
10 answers
258k views

How to get SVG thumbnails in Windows Explorer?

I can open them in browser just OK, but how can I have thumbnails in the Windows Explorer? Edit: I installed Renesis Player as suggested by this answer, but it does not work for me, probably because ...
zbstof's user avatar
  • 3,601
247 votes
11 answers
1.1m views

Kill a process which says "Access denied"

I have a process that I can't kill with either Task Manager or Process Explorer - I get the error "Access denied". The process isn't a Windows executable. How can I kill it? Is there some tool I ...
Tony_Henrich's user avatar
  • 11.9k
228 votes
19 answers
60k 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 64-...
Mehper C. Palavuzlar's user avatar
182 votes
11 answers
104k 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 "necessary"...
Stephen Jennings's user avatar
116 votes
11 answers
210k 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 ...
Gary's user avatar
  • 1,410
101 votes
11 answers
82k 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 ++. This ...
Jakub's user avatar
  • 3,171
85 votes
9 answers
278k views

Why Virtual Box won't give me option to create 64 bits guests?

My host is x64 bits Windows 8.1. I downloaded the latest Virtual Box (4.3) and I'm trying to create a VM with a 64 bits Ubuntu OS (ubuntu-12.04.3-desktop-amd64). When I go to New VM wizard, it doesn'...
Edy Bourne's user avatar
68 votes
11 answers
279k 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 ...
AngryHacker's user avatar
  • 18.7k
64 votes
5 answers
40k views

Chrome 100% CPU usage, again - software_reporter_tool.exe

software_reporter_tool.exe belonging to Chrome running at 100% cpu, fan full speed. Deleting it doesn't fix anything, because it gets redownloaded again! Disabling "Protect me from bla bla" doesn't ...
waaaaaat's user avatar
  • 677
62 votes
3 answers
397k views

How can I open the 32-bit ODBC Data Source Administrator in Windows 7 64-bit?

I want to add 32-bit data sources. There seems to be no obvious way to see existing instances of these or create new ones. How can I open the 32-bit "ODBC Data Source Administrator" window in Windows ...
Highly Irregular's user avatar
62 votes
8 answers
314k 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: <...
Maxime R.'s user avatar
  • 2,386
60 votes
3 answers
37k views

How do you register the 7-Zip GUI program with the .7z extension in Windows?

For whatever reason, the 64-bit Windows Installer doesn't seem to register the .7z file extension with the 7-Zip GUI (or with anything, as far as I can tell). How do I go about doing it. A simple "...
Clayton Hughes's user avatar
57 votes
3 answers
8k 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 ...
wizlog's user avatar
  • 13.4k
52 votes
0 answers
12k 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 ...
stalepretzel's user avatar
  • 1,176
51 votes
8 answers
139k views

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

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 ...
Silvio Donnini's user avatar
51 votes
3 answers
103k views

Difference between ia64 and x64

What is the difference between ia64 and x64?
AnnaR's user avatar
  • 779
46 votes
9 answers
419k views

How do I clean up COM ports in use?

How do I clean-up these in-use COM ports? The COM port numbers always seem to be taken up by something and although right now I only have 4 serial ports (3 over Bluetooth and one USB to RS-232), I ...
AndrejaKo's user avatar
  • 17.1k
45 votes
6 answers
50k views

Why can't a 64 bit OS run a 16 bit application?

Why is it that: a 32-bit OS, when installed on a 64-bit CPU, can run old 16-bit applications, but if you install a 64-bit OS it can't run those applications directly and need some sort of emulation (...
user avatar
44 votes
1 answer
7k 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?
MegaNairda's user avatar
43 votes
4 answers
12k views

Can a 64-bit computer (x86) run a 16-bit OS natively, without emulation?

If you were to build a modern x86 computer with completely modern parts, could you load MS-DOS 6.11 and Windows 3.11 onto it without any emulation or even with FreeDOS? I recently saw a video of it ...
ioi-xd's user avatar
  • 523
42 votes
8 answers
12k 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 clearly-...
Jonathan Prior's user avatar
41 votes
5 answers
154k views

How does one manually restart graphics drivers?

I'm suffering from the dreaded Radeon mouse cursor corruption. The problem is intermittent and can be "solved" by putting the computer to sleep or restarting it. I hope simply restarting the graphics ...
sequentiallee's user avatar
41 votes
7 answers
26k 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 ...
apoorv020's user avatar
  • 2,474
39 votes
2 answers
52k views

What`s the difference between Intel 64 and AMD64?

Can someone explain if there is any difference between the intel64 and amd64 architectures?
Mayhem's user avatar
  • 887
38 votes
7 answers
536k views

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

I'm using a 32-bit operating system. How can I check if my hardware supports 64-bit?
Louis Rhys's user avatar
  • 1,743
37 votes
8 answers
26k views

Is there any benefit from installing Windows 7 64-bit when you have less than 4GB of 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 ...
comet.vermont's user avatar
33 votes
8 answers
390k 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 ...
ericvg's user avatar
  • 1,286
33 votes
1 answer
44k views

How do I open an EPS file in GIMP 2? "Could not interpret PostScript file"

I've created some EPS files in GIMP 2, but I can't open them back up. When I try, the "Import from PostScript" dialog comes up, but no matter what I do, when I proceed I get an error "could not ...
nikodaemus's user avatar
  • 2,813
32 votes
2 answers
18k 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 ...
Ingo Karkat's user avatar
  • 23.2k
31 votes
8 answers
261k views

Uninstalling programs silently via CMD

Is there a way I can uninstall programs without the graphical interface and doing it via CMD?
kb67's user avatar
  • 647
31 votes
4 answers
37k views

Check if a process is running in 64 or 32-bit mode?

I'd like to check if a process is running in 64-bit or 32-bit mode. How can I do this? Process Explorer will tell me if the Image is 32-bit or 64-bit, is this what I should be looking at?
Daniel Plaisted's user avatar
30 votes
9 answers
83k 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" (...
Rewinder's user avatar
  • 445
29 votes
6 answers
5k views

How do you determine that your hardware is 64 bit capable when there is no operating system installed?

How do you determine that your hardware is 64 bit capable when there is no operating system installed?
Bro's user avatar
  • 417
28 votes
7 answers
147k views

What is a UFR II printer driver and why might I use it in preference to another type?

A new printer recently showed up at work. There are an abundance of possible drivers for it applicable to my system (Windows 7, 64 bit) including PCL5, PCL5e, PCL6 and UFR II. I'm familiar with PCL, ...
Richard J Foster's user avatar
27 votes
4 answers
172k 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?
user avatar
27 votes
2 answers
15k 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 ...
naumcho's user avatar
  • 521
26 votes
6 answers
21k 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 (so I ...
NFX's user avatar
  • 279
26 votes
6 answers
26k 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 ...
drjrm3's user avatar
  • 1,506
26 votes
6 answers
162k views

Memory limits in 16, 32 and 64 bit systems

The theoretical memory limits in 16, 32 and 64 bit machines are as follows: 16 bit = 65,536 bytes (64 Kilobytes) 32 bit = 4,294,967,296 bytes (4 Gigabytes) 64 bit = 18,446,744,073,709,551,616 (16 ...
Matthew Layton's user avatar
25 votes
2 answers
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 ...
Tonny Madsen's user avatar
24 votes
6 answers
119k views

How to Run an app as Administrator without the prompt?

When I start SQL Server Management Studio 2008, I get an error that's been around forever and is documented here. One of the suggestions to fix it that actually worked was to start SSMS with Run as ...
AngryHacker's user avatar
  • 18.7k
22 votes
2 answers
5k views

How do I see if a process is running in 32-bit or 64-bit mode in the Windows 8/10 Task Manager?

Previously, I would look in Task Manager for a *32 next to the process name in Task Manager to tell what platform the process is running on: However, in Windows 8 and 10 (on the details tab) this is ...
Jonno's user avatar
  • 21.3k
22 votes
3 answers
34k 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 ...
Danielb's user avatar
  • 629
22 votes
1 answer
63k views

How to turn off WinHttp proxy?

Not too long ago I turned on a proxy for WinHttp traffic like this (from this article): netsh winhttp set proxy 127.0.0.1:8888 How can I turn the proxy off now? I can't seem to get the syntax right....
AngryHacker's user avatar
  • 18.7k
21 votes
1 answer
93k views

How to install i386 package under amd64 ubuntu/debian

All existing answers I found are for the pre-multiarch era (chroot) https://help.ubuntu.com/community/MultiArch says it is OK to install i386 package on amd64 under the multiarch environment, but ...
xpt's user avatar
  • 8,821
21 votes
4 answers
179k 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 ...
Rory's user avatar
  • 2,100
21 votes
5 answers
67k views

How to reinstall Windows 10 on new hard disk

I've been using Windows 10 for a couple of month now (joined the Insider Preview). Now my hard drive started ticking so I've bought a new SSD and I want to move the windows installation to the new ...
Shimmy Weitzhandler's user avatar
20 votes
8 answers
3k 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?
Robert Munteanu's user avatar
20 votes
4 answers
2k 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.
AngryHacker's user avatar
  • 18.7k

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