batch file to check 64bit or 32bit OS

Question

Can I check to see if current machine is running 64bit OS or 32bit OS inside a batch file   EDIT   Found this online and it is good enough to me now

User · Answer

The correct way  as SAM write before is      reg Query  HKLM Hardware Description System CentralProcessor 0   v    Identifier    find  i  x86    NUL  amp  amp  set OS 32BIT    set OS 64BIT   but with  v  Identifier  a little bit correct

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I really do not understand some of the answers given here  sorry for that   The top-voted answer for example does not return the Windows architecture  instead it will give you the processor architecture  While running a 32-bits Windows build on a 64-bits CPU you will get the wrong result  it s a query on hardware being used    The safest option is to query the BuildLabEx value from the registry   Determine x86  intel  or x86-64  amd   reg query  HKLM Software Microsoft Windows NT CurrentVersion   v  BuildLabEx     gt nul find  i   x86fre      amp  amp  set   ARCH  x86     set   ARCH  x86-64    Determine x86  intel   x86-64  amd  or arm  set   ARCH  unknown  reg query  HKLM Software Microsoft Windows NT CurrentVersion   v  BuildLabEx     gt nul find  i   x86fre      amp  amp  set   ARCH  x86   reg query  HKLM Software Microsoft Windows NT CurrentVersion   v  BuildLabEx     gt nul find  i   amd64fre    amp  amp  set   ARCH  x86-64   reg query  HKLM Software Microsoft Windows NT CurrentVersion   v  BuildLabEx     gt nul find  i   armfre      amp  amp  set   ARCH  arm     An alternative option  mentioned before   if defined ProgramFiles x86    set   ARCH  x86-64    else   set   ARCH  x86      The problem with the latter is when you mess up your variables  you are not able to use this method  Checking for the folder s existence will cause problems too when there are leftovers from a previous install  or some user purposely created the folder

User · Answer

If  SYSTEM os arch  x86      Echo OS is 32bit    else      ECHO OS is 64bit

User · Answer

ProgramFiles x86   is an environment variable automatically defined by cmd exe  both 32-bit and 64-bit versions  on Windows 64-bit machines only  so try this    ECHO OFF  echo Check operating system     if defined PROGRAMFILES X86        echo 64-bit sytem detected   else       echo 32-bit sytem detected   pause

User · Answer

PROCESSOR ARCHITECTURE x86   Will appear on Win32  and  PROCESSOR ARCHITECTURE AMD64   will appear for Win64   If you are perversely running the 32-bit cmd exe process then Windows presents two environment variables   PROCESSOR ARCHITECTURE x86 PROCESSOR ARCHITEW6432 AMD64

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I use either of the following    CheckOS IF EXIST   PROGRAMFILES X86     GOTO 64BIT  ELSE  GOTO 32BIT    64BIT echo 64-bit    GOTO END   32BIT echo 32-bit    GOTO END   END   or I set the bit variable  which I later use in my script to run the correct setup    CheckOS IF EXIST   PROGRAMFILES X86     set bit x64  ELSE  set bit x86    or      CheckOS IF   PROCESSOR ARCHITECTURE     x86   set bit x86  else  set bit x64    Hope this helps

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You can use the following registry location to check if computer is running 32 or 64 bit of Windows operating system   HKLM HARDWARE DESCRIPTION System CentralProcessor 0   You will see the following registry entries in the right pane   Identifier     REG SZ             x86 Family 6 Model 14 Stepping 12 Platform ID    REG DWORD          0x00000020 32    The above x86 and 0x00000020 32  indicate that the operating system version is 32 bit

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None of the answers here were working in my case  64 bit processor but 32 bit OS   so here s the solution which worked for me    set   find  ProgramFiles x86    gt  NUL   amp  amp   echo   ProgramFiles x86      find  x86    gt  NUL  amp  amp  set bits 64    set bits 32

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This is a one-liner that will have  errorlevel  of 0 for 64-bit  1 for non-64-bit  I can t vouch for it working on all versions of Windows  but demonstrates one method for determining it  You can add multiple findstrqueries if you know all the possibilities to look for   set   findstr  i processo  64  gt  nul 2 gt  amp 1  Basically  you re dumping the environment variables  and using a regular expression to search for something that has  processo     64  somewhere in its line  The piping is just to suppress the matching lines  If I changed it to set   findstr  i processo  64 on my current rig  this would be the result    C  Windows System32 gt set   findstr  i processo  64    PROCESSOR ARCHITECTURE AMD64 PROCESSOR IDENTIFIER Intel64 Family 6 Model 158 Stepping 9  GenuineIntel    This is a one-liner to see if your processor is a 64-bit AMD  set   findstr  i processo  amd  64  gt  nul 2 gt  amp 1  You can take these as a starting point and refine them for your requirements  I ended up using this over known environment variable names due to it being more reliable across different major versions of Windows that I was working with

User · Answer

Run the below in the command prompt   Start -  Run -  Type cmd and enter the command below in the resulting black box   wmic os get osarchitecture

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FYI  try and move away from using  PROCESSOR ARCHITECTURE  as SCCM made a change around version 2012 which always launces Packages Programs under a 32-bit process  it can install x64 but environment variables will appear as x86   I now use   IF EXIST   SystemDrive  Program Files  x86   GOTO X64  Jack

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I usually do the following    Check Architecture if  i   processor architecture     x86        IF NOT DEFINED PROCESSOR ARCHITEW6432           REM Run 32 bit command        ELSE           REM Run 64 bit command                    else           REM Run 64 bit command

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Start       echo off  Set RegQry HKLM Hardware Description System CentralProcessor 0  REG exe Query  RegQry   gt  checkOS txt  Find  i  x86   lt  CheckOS txt  gt  StringCheck txt  If  ERRORLEVEL     0       Echo  This is 32 Bit Operating system    ELSE       Echo  This is 64 Bit Operating System         End       reference http   support microsoft com kb 556009

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Here s my personal favorite  a logical bomb       32 64Bit Switch ECHO  PROCESSOR ARCHITECTURE  FINDSTR AMD64 gt NUL  amp  amp  SET ARCH AMD64    SET ARCH x86 ECHO  ARCH  PAUSE   With the AND s   amp  amp   and OR s      this is a IF THEN ELSE Batch Construct

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After much trial and error  I managed to get a few different working examples  but the kicker was when the batch was launched on a 64bit OS on a 32bit CMD   In the end this was the simplest check I could get to work  which works on Win2k-Win8 32 64  Also big thanks to Phil who helped me with this   set bit64 n if  I  Processor Architecture   AMD64 set bit64 y if  I   PROCESSOR ARCHITEW6432     AMD64  set bit64 y

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Here s a nice concise version    set isX64 False  amp  amp  if  I   PROCESSOR ARCHITECTURE     AMD64    set isX64 True   else   if  I   PROCESSOR ARCHITEW6432     AMD64    set isX64 True      echo  isX64    Don t use the  Program Files  x86   directory as evidence of anything  naughty software can easily create this directory on a 32-bit machine  Instead use the PROCESSOR ARCHITECTURE and PROCESSOR ARCHITEW6432 environment variables

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Seems to work if you do only these   echo   PROCESSOR ARCHITECTURE     I ve found these script which will do specific stuff depending of OS Architecture  x64 or x86     echo off echo Detecting OS processor type  if   PROCESSOR ARCHITECTURE     AMD64  goto 64BIT echo 32-bit OS   savdaldpm01 ProtectionAgents RA 3 0 7558 0 i386 DPMAgentInstaller x86  q goto END  64BIT echo 64-bit OS   savdaldpm01 ProtectionAgents RA 3 0 7558 0 amd64 DPMAgentInstaller x64  q  END   C  Program Files Microsoft Data Protection Manager DPM bin setdpmserver exe  -dpmservername sa   Try to find a way without GOTO please     For people whom work with Unix systems  uname -m will do the trick

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Many DOS commands in the different versions of Windows are similar but may support different parameters  Plus  newer versions of Windows may support new commands or retire older ones  Thus  if you wish to write a batch file that can run on different types of machines  it may prove beneficial to determine the version of Windows on which the batch file is running  This way the batch file can execute commands appropriate to the operating system   The following batch file will determine whether or not the machine is running Windows 7  Windows Server 2008  Windows Vista  Windows Server 2003  Windows XP  Windows 2000  or Windows NT  It can easily be modified to support other versions of Windows as necessary or to set an environment variable based on the version of Windows detected  Note that for this batch file to correctly discern between newer versions of Windows Server and consumer versions of Windows  it is more convoluted than batch files you may see elsewhere  I have explained the reasoning below   1  Open a Notepad window   2  Copy the following text into Notepad  you may want to access this tip s printed version as some lines wrap     echo off  ver   find  2003   gt  nul if  ERRORLEVEL     0 goto ver 2003  ver   find  XP   gt  nul if  ERRORLEVEL     0 goto ver xp  ver   find  2000   gt  nul if  ERRORLEVEL     0 goto ver 2000  ver   find  NT   gt  nul if  ERRORLEVEL     0 goto ver nt  if not exist  SystemRoot  system32 systeminfo exe goto warnthenexit  systeminfo   find  OS Name   gt   TEMP  osname txt FOR  F  usebackq delims   tokens 2    i IN   TEMP  osname txt  DO set vers   i  echo  vers    find  Windows 7   gt  nul if  ERRORLEVEL     0 goto ver 7  echo  vers    find  Windows Server 2008   gt  nul if  ERRORLEVEL     0 goto ver 2008  echo  vers    find  Windows Vista   gt  nul if  ERRORLEVEL     0 goto ver vista  goto warnthenexit   ver 7  Run Windows 7 specific commands here  echo Windows 7 goto exit   ver 2008  Run Windows Server 2008 specific commands here  echo Windows Server 2008 goto exit   ver vista  Run Windows Vista specific commands here  echo Windows Vista goto exit   ver 2003  Run Windows Server 2003 specific commands here  echo Windows Server 2003 goto exit   ver xp  Run Windows XP specific commands here  echo Windows XP goto exit   ver 2000  Run Windows 2000 specific commands here  echo Windows 2000 goto exit   ver nt  Run Windows NT specific commands here  echo Windows NT goto exit   warnthenexit echo Machine undetermined    exit   3  Save the file as  WINDIR  whichvers bat  4  Now  from the command prompt  enter   whichvers  This will display which version of Windows you are running   NOTES    The reasoning for using the SYSTEMINFO command rather than relying on the VER command is because Windows Server 2008  shares  version numbers with other Windows releases  see Microsoft   Thus relying on a  version number  of 6 0 to detect Windows Vista or 6 1 to detect Windows 7 fails to differentiate a machine from Windows Server 2008 or Windows Server 2008 R2  The creation of  TEMP  osname txt is solely because I could not place the results of systeminfo   find  OS Name  directly into the for  f command - it does not like piped commands  You may find an easier way to handle grabbing the information from SYSTEMINFO - if so  please comment  The environment variable  vers  has leading spaces  I could remove these with a longer batch file  but in this case it is not necessary  The batch file detects for SYSTEMINFO as it assumes if it gets beyond the older operating system detections  the running version of Windows is even older and will not have this utility  On Windows 7 64-bit it is still located in the  SystemRoot  system32 folder - if later versions of Windows become 64-bit only  this batch file may have to be updated    Return to the Windows XP and DOS page

User · Answer

set   os 64  if   PROCESSOR ARCHITECTURE     x86   if not defined PROCESSOR ARCHITEW6432 set   os 32     Based on  https   blogs msdn microsoft com david wang 2006 03 27 howto-detect-process-bitness   and http   ss64 com nt syntax-64bit html

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set bit 64 IF NOT DEFINED PROGRAMFILES X86    set  PROGRAMFILES X86   PROGRAMFILES   set bit 32   REM Example 1  REG IMPORT Install bit  reg  all compatibility  REM Example 2  CD  PROGRAMFILES X86    all compatibility

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This is the correct way to perform the check as-per Microsoft s knowledgebase reference   http   support microsoft com kb 556009   that I have re-edited into just a single line of code   It doesn t rely on any environment variables or folder names and instead checks directly in the registry   As shown in a full batch file below it sets an environment variable OS equal to either 32BIT or 64BIT that you can use as desired    echo OFF  reg Query  HKLM Hardware Description System CentralProcessor 0    find  i  x86   gt  NUL  amp  amp  set OS 32BIT    set OS 64BIT  if  OS   32BIT echo This is a 32bit operating system if  OS   64BIT echo This is a 64bit operating system

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If you are running the script as an administrator  then the script can use the wmic command   FOR  f  tokens 2 delims      f IN   wmic os get osarchitecture  value    find       DO SET  OS ARCH   f  IF   OS ARCH     32-bit  GOTO  32bit IF   OS ARCH     64-bit  GOTO  64bit  ECHO OS Architecture  OS ARCH  is not supported  EXIT 1   32bit ECHO  32 bit Operating System  GOTO  SUCCESS   64bit ECHO  64 bit Operating System  GOTO  SUCCESS   SUCCESS EXIT 0

[windows] batch file to check 64bit or 32bit OS

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