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Possible values of %PROCESSOR_ARCHITECTURE%

Batch File Check Directory exists in x64 and/or x86Will PROCESSOR_ARCHITECTURE Environment Variable Identify as 32 Bit on a 64 Bit Machine with a 32 Bit OS Installed?How can I program a script that can tell the difference between x86 & x64?Setting and getting Windows environment variables from the command prompt?cmd.exe SET command does not save values for new cmd.exe sessionsHow to write the path of a 32 bit executable in the Windows' Program Files folder regardless of the Windows version?TEMP vs TMP in Environment VariablesAssigning a Windows environment variable to a batch variable?How to use Powershell command invoke-sqlcmd in batch scriptWrong architecture or manufacturer - conflicting informationReading environment variable in command alias causes evaluating it?Don't refresh PATH user environment variable values in ConEmu without Windows rebootFind non-sequential counters in log

22

4

I'm writing a batch script for windows 7 and want to handle both 64 bit and and x86 processors.

What are the possible values of the Windows %PROCESSOR_ARCHITECTURE% environment variable?

windows command-line

share|improve this question

edited Jul 4 '11 at 2:34

Jeff Atwood

17.5k2990114

asked Jul 4 '11 at 0:26

vcelloho

migrated from stackoverflow.com Jul 4 '11 at 1:44

This question came from our site for professional and enthusiast programmers.

• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  'migrated from stackoverflow' ... it's as if someone doesn't think that batch scripting is proper programming!?
  
  – Rory
  Jun 23 '14 at 16:17
  

  
  
  
  

add a comment | 

22

4

I'm writing a batch script for windows 7 and want to handle both 64 bit and and x86 processors.

What are the possible values of the Windows %PROCESSOR_ARCHITECTURE% environment variable?

windows command-line

share|improve this question

edited Jul 4 '11 at 2:34

Jeff Atwood

17.5k2990114

asked Jul 4 '11 at 0:26

vcelloho

migrated from stackoverflow.com Jul 4 '11 at 1:44

This question came from our site for professional and enthusiast programmers.

• 
  
  
  

  
  5
  

  
  
  
  
  
  

  
  
  'migrated from stackoverflow' ... it's as if someone doesn't think that batch scripting is proper programming!?
  
  – Rory
  Jun 23 '14 at 16:17
  

  
  
  
  

add a comment | 

I'm writing a batch script for windows 7 and want to handle both 64 bit and and x86 processors.

What are the possible values of the Windows %PROCESSOR_ARCHITECTURE% environment variable?

windows command-line

share|improve this question

edited Jul 4 '11 at 2:34

Jeff Atwood

17.5k2990114

asked Jul 4 '11 at 0:26

vcelloho

share|improve this question

edited Jul 4 '11 at 2:34

Jeff Atwood

17.5k2990114

asked Jul 4 '11 at 0:26

vcelloho

share|improve this question

edited Jul 4 '11 at 2:34

Jeff Atwood

17.5k2990114

asked Jul 4 '11 at 0:26

vcelloho

edited Jul 4 '11 at 2:34

Jeff Atwood

17.5k2990114

edited Jul 4 '11 at 2:34

Jeff Atwood

17.5k2990114

4 Answers
4

active

oldest

votes

25

http://msdn.microsoft.com/en-us/library/aa384274.aspx

• AMD64


• IA64


• x86

Note that this doesn't tell you the architecture of the processor but only of the process with the environment variable. It returns "x86" for a 32 bit process running on 64 bit Windows.

share|improve this answer

edited Oct 7 '13 at 11:25

Community♦

1

answered Jul 4 '11 at 0:34

RobertPittRobertPitt

464717

• 
  
  
  

  
  8
  

  
  
  
  
  
  

  
  
  There's a workaround for the "32bit process on 64bit Windows" problem: just check PROCESSOR_ARCHITEW6432 as well, and if it isn't undefined (i.e. equals to AMD64 or IA64), then this is a 64bit machine. Source.
  
  – Olegs Jeremejevs
  Jan 23 '14 at 11:35
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Should add ARM in there now.
  
  – quadruplebucky
  Jul 16 '17 at 8:32
  

  
  
  
  

add a comment | 

3

"EM64T" is also a possible value, however unlikely.
My understanding is that you will only see this with XP-64.

share|improve this answer

answered Jul 24 '14 at 17:38

DednDaveDednDave

311

add a comment | 

0

type:
"[IntPtr]::Size" -without quotes-

if value is 4, youre in a 32-bit process, if 8, its 64-bit process

share

answered 1 min ago

iAn ARTiAn ART

1

New contributor

iAn ART is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

-1

REG QUERY "HKEY_LOCAL_MACHINEHARDWAREDESCRIPTIONSystemCentralProcessor" /v "Identifier" | Find "64 Family"

IF %ERRORLEVEL% == 1 goto x86

:x64

REM Do 64 bit stuff here

goto end

:x86

Do 32 bit stuff here

:end

EXIT %ERRORLEVEL%

share|improve this answer

edited Feb 21 at 12:49

Mr Shunz

1,82512017

answered Feb 21 at 10:50

TimTim

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I find querying the registry as fast and easy to code
  
  – Tim
  Feb 21 at 10:52
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I should have REM'd the 'Do 32 bit stuff here'
  
  – Tim
  Feb 21 at 10:52
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Tim, there's an EDIT button you can use to add and improve information in your answer. You should use this rather than adding comments. Your answer may be helpful, but right now it lacks any explanation of what you're doing and why this is a good way to go about finding the answer OP is looking for. As noted, use the EDIT button to make your answer better and more clear and complete.
  
  – music2myear
  Feb 21 at 16:52
  

  
  
  
  

add a comment | 

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25

http://msdn.microsoft.com/en-us/library/aa384274.aspx

• AMD64


• IA64


• x86

Note that this doesn't tell you the architecture of the processor but only of the process with the environment variable. It returns "x86" for a 32 bit process running on 64 bit Windows.

share|improve this answer

edited Oct 7 '13 at 11:25

Community♦

1

answered Jul 4 '11 at 0:34

RobertPittRobertPitt

464717

• 
  
  
  

  
  8
  

  
  
  
  
  
  

  
  
  There's a workaround for the "32bit process on 64bit Windows" problem: just check PROCESSOR_ARCHITEW6432 as well, and if it isn't undefined (i.e. equals to AMD64 or IA64), then this is a 64bit machine. Source.
  
  – Olegs Jeremejevs
  Jan 23 '14 at 11:35
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Should add ARM in there now.
  
  – quadruplebucky
  Jul 16 '17 at 8:32
  

  
  
  
  

add a comment | 

25

http://msdn.microsoft.com/en-us/library/aa384274.aspx

• AMD64


• IA64


• x86

Note that this doesn't tell you the architecture of the processor but only of the process with the environment variable. It returns "x86" for a 32 bit process running on 64 bit Windows.

share|improve this answer

edited Oct 7 '13 at 11:25

Community♦

1

answered Jul 4 '11 at 0:34

RobertPittRobertPitt

464717

• 
  
  
  

  
  8
  

  
  
  
  
  
  

  
  
  There's a workaround for the "32bit process on 64bit Windows" problem: just check PROCESSOR_ARCHITEW6432 as well, and if it isn't undefined (i.e. equals to AMD64 or IA64), then this is a 64bit machine. Source.
  
  – Olegs Jeremejevs
  Jan 23 '14 at 11:35
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Should add ARM in there now.
  
  – quadruplebucky
  Jul 16 '17 at 8:32
  

  
  
  
  

add a comment | 

http://msdn.microsoft.com/en-us/library/aa384274.aspx

• AMD64


• IA64


• x86

Note that this doesn't tell you the architecture of the processor but only of the process with the environment variable. It returns "x86" for a 32 bit process running on 64 bit Windows.

share|improve this answer

edited Oct 7 '13 at 11:25

Community♦

1

answered Jul 4 '11 at 0:34

RobertPittRobertPitt

464717

share|improve this answer

edited Oct 7 '13 at 11:25

Community♦

1

answered Jul 4 '11 at 0:34

RobertPittRobertPitt

464717

edited Oct 7 '13 at 11:25

Community♦

1

edited Oct 7 '13 at 11:25

Community♦

1

answered Jul 4 '11 at 0:34

RobertPittRobertPitt

464717

answered Jul 4 '11 at 0:34

RobertPittRobertPitt

464717

3

"EM64T" is also a possible value, however unlikely.
My understanding is that you will only see this with XP-64.

share|improve this answer

answered Jul 24 '14 at 17:38

DednDaveDednDave

311

add a comment | 

3

"EM64T" is also a possible value, however unlikely.
My understanding is that you will only see this with XP-64.

share|improve this answer

answered Jul 24 '14 at 17:38

DednDaveDednDave

311

add a comment | 

"EM64T" is also a possible value, however unlikely.
My understanding is that you will only see this with XP-64.

share|improve this answer

answered Jul 24 '14 at 17:38

DednDaveDednDave

311

share|improve this answer

answered Jul 24 '14 at 17:38

DednDaveDednDave

311

answered Jul 24 '14 at 17:38

DednDaveDednDave

311

answered Jul 24 '14 at 17:38

DednDaveDednDave

311

0

type:
"[IntPtr]::Size" -without quotes-

if value is 4, youre in a 32-bit process, if 8, its 64-bit process

share

answered 1 min ago

iAn ARTiAn ART

1

New contributor

iAn ART is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

0

type:
"[IntPtr]::Size" -without quotes-

if value is 4, youre in a 32-bit process, if 8, its 64-bit process

share

answered 1 min ago

iAn ARTiAn ART

1

New contributor

iAn ART is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

add a comment | 

type:
"[IntPtr]::Size" -without quotes-

if value is 4, youre in a 32-bit process, if 8, its 64-bit process

share

answered 1 min ago

iAn ARTiAn ART

1

New contributor

iAn ART is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

share

answered 1 min ago

iAn ARTiAn ART

1

New contributor

iAn ART is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 1 min ago

iAn ARTiAn ART

1

New contributor

iAn ART is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.

answered 1 min ago

iAn ARTiAn ART

1

-1

REG QUERY "HKEY_LOCAL_MACHINEHARDWAREDESCRIPTIONSystemCentralProcessor" /v "Identifier" | Find "64 Family"

IF %ERRORLEVEL% == 1 goto x86

:x64

REM Do 64 bit stuff here

goto end

:x86

Do 32 bit stuff here

:end

EXIT %ERRORLEVEL%

share|improve this answer

edited Feb 21 at 12:49

Mr Shunz

1,82512017

answered Feb 21 at 10:50

TimTim

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I find querying the registry as fast and easy to code
  
  – Tim
  Feb 21 at 10:52
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I should have REM'd the 'Do 32 bit stuff here'
  
  – Tim
  Feb 21 at 10:52
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Tim, there's an EDIT button you can use to add and improve information in your answer. You should use this rather than adding comments. Your answer may be helpful, but right now it lacks any explanation of what you're doing and why this is a good way to go about finding the answer OP is looking for. As noted, use the EDIT button to make your answer better and more clear and complete.
  
  – music2myear
  Feb 21 at 16:52
  

  
  
  
  

add a comment | 

-1

REG QUERY "HKEY_LOCAL_MACHINEHARDWAREDESCRIPTIONSystemCentralProcessor" /v "Identifier" | Find "64 Family"

IF %ERRORLEVEL% == 1 goto x86

:x64

REM Do 64 bit stuff here

goto end

:x86

Do 32 bit stuff here

:end

EXIT %ERRORLEVEL%

share|improve this answer

edited Feb 21 at 12:49

Mr Shunz

1,82512017

answered Feb 21 at 10:50

TimTim

1

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I find querying the registry as fast and easy to code
  
  – Tim
  Feb 21 at 10:52
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I should have REM'd the 'Do 32 bit stuff here'
  
  – Tim
  Feb 21 at 10:52
  

  
  
  
  


• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Tim, there's an EDIT button you can use to add and improve information in your answer. You should use this rather than adding comments. Your answer may be helpful, but right now it lacks any explanation of what you're doing and why this is a good way to go about finding the answer OP is looking for. As noted, use the EDIT button to make your answer better and more clear and complete.
  
  – music2myear
  Feb 21 at 16:52
  

  
  
  
  

add a comment | 

REG QUERY "HKEY_LOCAL_MACHINEHARDWAREDESCRIPTIONSystemCentralProcessor" /v "Identifier" | Find "64 Family"

IF %ERRORLEVEL% == 1 goto x86

:x64

REM Do 64 bit stuff here

goto end

:x86

Do 32 bit stuff here

:end

EXIT %ERRORLEVEL%

share|improve this answer

edited Feb 21 at 12:49

Mr Shunz

1,82512017

answered Feb 21 at 10:50

TimTim

1

REG QUERY "HKEY_LOCAL_MACHINEHARDWAREDESCRIPTIONSystemCentralProcessor" /v "Identifier" | Find "64 Family"

IF %ERRORLEVEL% == 1 goto x86

:x64

REM Do 64 bit stuff here

goto end

:x86

Do 32 bit stuff here

:end

EXIT %ERRORLEVEL%

share|improve this answer

edited Feb 21 at 12:49

Mr Shunz

1,82512017

answered Feb 21 at 10:50

TimTim

1

edited Feb 21 at 12:49

Mr Shunz

1,82512017

edited Feb 21 at 12:49

Mr Shunz

1,82512017

answered Feb 21 at 10:50

TimTim

1

answered Feb 21 at 10:50

TimTim

1