Install Windows X64 Bit
Not sure if your installed version of Windows is 32-bit or 64-bit?
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If you're running Windows XP, chances are it's 32-bit. However, if you're running Windows 10, Windows 8, Windows 7, or Windows Vista, the chance that you're running a 64-bit version goes up considerably.
Of course, this isn't something you want to take a guess at.
Knowing if your copy of Windows is 32-bit or 64-bit becomes very important when installing device drivers for your hardware and choosing between certain kinds of software.
One quick way to tell if you're running a 32-bit or 64-bit version of Windows is by looking at information about your operating system installation in Control Panel. However, the specific steps involved depend a lot on which operating system you're using.
See What Version of Windows Do I Have? if you're not sure which of those several versions of Windows is installed on your computer.
Another quick and simple way to check if you're running a 32-bit or 64-bit version of Windows is to check the 'Program Files' folder. There's more on that at the very bottom of this page.
Windows 10 & Windows 8: 64-bit or 32-bit?
You can check your Windows system type much faster from the Power User Menu, but it's probably speedier that way only if you're using a keyboard or mouse. With that menu open, click or touch on System and then skip to Step 4.
Touch or click on System and Security within Control Panel.
You won't see a System and Security link in Control Panel if your view is set to either Large icons or Small icons. If so, select System and then skip to Step 4.
With the System and Security window now open, choose System.
With the Systemapplet now open, titled View basic information about your computer, find the System area, located under the large Windows logo.
The System type will say either 64-bit Operating System or 32-bit Operating System.
The second bit of information, either x64-based processor or x86-based processor, indicates the hardware architecture. It is possible to install a 32-bit edition of Windows on either an x86 or x64 based system, but a 64-bit edition can only be installed on x64 hardware.
You should now know for certain whether your operating system is 32-bit or 64-bit
System, the Control Panel applet that contains the Windows system type, can also be opened by executing the control /name Microsoft.Systemcommand from Run or Command Prompt.
Windows 7: 64-bit or 32-bit?
If you're viewing either the Large icons or Small icons view of Control Panel, you won't see this link. Just choose System and then proceed to Step 4.
When the System window opens, titled as View basic information about your computer, locate the System area below the oversized Windows logo.
In the System area, look for System type among the other statistics about your computer.
The System type will report either a 32-bit Operating System or a 64-bit Operating System.
There is no 64-bit version of Windows 7 Starter Edition.
Now you know whether you have Windows 7 64-bit or 32-bit.
Windows Vista: 64-bit or 32-bit?
Select Control Panel from the Start menu.
Choose System and Maintenance.
If you're viewing the Classic View of Control Panel, you won't see this link. Just double-click or tap-and-hold System and proceed to Step 4.
Select System in the System and Maintenance window.
When the System window opens, titled as View basic information about your computer, locate the System area below the big Windows logo.
In the System area, look for System type below the other statistics about your PC.
The System type will report either a 32-bit Operating System or a 64-bit Operating System.
There is no 64-bit version of Windows Vista Starter Edition.
You should now know whether you have Windows Vista 64-bit or 32-bit.
Windows XP: 64-bit or 32-bit?
Select Start and then choose Control Panel.
Select Performance and Maintenance.
If you're viewing the Classic View of Control Panel, you won't see this link. Just double-click or tap-and-hold on the System icon and proceed to Step 4.
Choose System from the bottom of the Performance and Maintenance window.
Locate Systemto the right of the Windows logo.
You should be on the General tab in System Properties.
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Under System: you'll see basic information about the version of Windows XP installed on your computer:
Microsoft Windows XP Professional Version [year] means you're running Windows XP 32-bit.
Microsoft Windows XP Professional x64 Edition Version [year] means you're running Windows XP 64-bit.
There are no 64-bit versions of Windows XP Home or Windows XP Media Center Edition. If you have either of these editions of Windows XP, you're running a 32-bit operating system.
Now you know if you're running Windows XP 64-bit or 32-bit.
Check the 'Program Files' Folder Name
This method isn't as easy to understand as using Control Panel but it does provide a quick way of checking on whether you're running a 64-bit or 32-bit version of Windows, and is especially helpful if you're looking for this information from a command line tool.
If your version of Windows is 64-bit, you're able to install both 32-bit and 64-bit software programs, so there are two different 'Program Files' folders on your computer. However, 32-bit versions of Windows have just one folder since they can only install 32-bit programs.
Here's an easy way to comprehend this..
Two program folders exist on a 64-bit version of Windows:
- 32-bit location: C:Program Files (x86)
- 64-bit location: C:Program Files
32-bit versions of Windows have just one folder:
- 32-bit location: C:Program Files
Therefore, if you find only one folder when checking this location, you're using a 32-bit version of Windows. If there are two 'Program Files' folder, you're for sure using a 64-bit version.
-->When you create 64-bit Windows Installer Packages or applications that call Windows Installer to install 64-bit packages, do the following:
- Use a Windows Installer database schema of 200 or higher. Specify that version 2.0 is the minimum version of the installer required to install the package by setting the Page Count Summary property to the integer 200. Earlier Windows Installer versions reject attempts to install 64-bit packages. For 64-bit packages on the Arm64 platform, the Windows Installer database schema must be 500 or higher.
- Indicate in the Template Summary property of the package summary information stream that this is a 64-bit package. Enter 'Intel64' into the platform field of the Template Summary property if the package is to be run on an Intel64 processor. Enter 'x64' if the package is to be run on a 64-bit extended processor. Enter “Arm64” if the package is to be run on an Arm64 processor. A package cannot be marked as supporting both Intel64 and x64 platforms, a Template Summary property value of 'Intel64,x64' is invalid. A package cannot be marked as supporting both 32-bit and 64-bit platforms, the Template Summary property values of 'Intel,x64' or 'Intel,Intel64' are invalid.
- Identify every 64-bit component by setting the msidbComponentAttributes64bit in the Attributes column of the Component table.
- Use optional conditional statements that check the version of the 64-bit operating system by referencing the VersionNT64 property. Windows Installer sets this property to the 64-bit Windows version and leaves VersionNT64 undefined if the operating system is not 64-bit Windows. For more information, see Using Properties in Conditional Statements.
- Use optional conditional statements that check the numeric processor level of the computer by referencing the Intel64 or Msix64 property. The Windows Installer sets these properties to the current numeric processor level of the computer and leaves the Intel64 Property undefined if this is not an Itanium-based processor. For more information, see Using Properties in Conditional Statements.
- Use the AppSearch Table and AppSearch Action to do optional searches of the registry for existing 64-bit components. To search for existing 64-bit components, include the msidbLocatorType64bit bit in the Type column of the RegLocator Table. For more information, see Searching for Existing Applications, Files, Registry Entries or .ini File Entries Property
- Obtain the paths to system folders by referencing the System64FolderProperty, ProgramFiles64Folder Property, and CommonFiles64Folder Property for the 64-bit folders and the SystemFolder Property, ProgramFilesFolder Property, and CommonFilesFolder Property for the 32-bit folders.
- Verify that the application uses the correct GUID when referencing a 64-bit component. If there are 32-bit and 64-bit versions of a specific component, these should have different component ID GUIDs.
- Determine whether any new environment variables need to be defined when installing 64-bit applications.
- If a 64-bit ODBC Driver Manager is to be installed, the component that carries it should be named ODBCDriverManager64. The ODBC Driver Manager must be authored in the installer package and a component named ODBCDriverManager64 must be included. The manager will be installed if necessary.
- Verify that the application only calls 32-bit services that run as executables. Applications should not call 32-bit services that run in DLLs.
- If the application installs coexisting 32-bit and 64-bit versions of a component, verify that the application shares .ini file information correctly.
- Verify that the application only applies 32-bit patches to 32-bit binaries and 64-bit patches to 64-bit binaries.
- Consider future upgrade scenarios for both 32-bit and 64-bit versions and maintain upgrade codes. For more information, see Patching and Upgrades.
- When using a bootstrapping application to install a 64-bit Windows Installer Package, compile the bootstrapping application as a 64-bit application.
- To disable Registry Reflection for registry keys that are affected by a particular component, set the msidbComponentAttributesDisableRegistryReflection bit in the Attributes field of the Component table. This may be necessary to have 32-bit and 64-bit copies of the same application coexist. If this bit is set, the Windows Installer calls the RegDisableReflectionKey function on each key that is being accessed by the component. This bit is available with Windows Installer version 4.0. This bit is ignored on 32-bit systems. This bit is ignored on the 64-bit versions of Windows XP and Windows 2000.
Note
The value of the numeric registry root returned by the lpPathBuf parameter of the MsiGetComponentPath function distinguishes between components on 32-bit and 64-bit operating systems. For more information, see MsiGetComponentPath function.