|  | | How do I uninstall Pervasive/Actian/Zen? | 
 | Description |  | There are several reasons to remove the Pervasive/Actian/Zen PSQL software installation from the system:  Virus scanning software falsely identifies a file as malicious and deletes itOther security software may also falsely quarantine filesPower surges or disk problems can corrupt program filesWindows updates overwrite files or otherwise interfere with program function | 
 | Resolution |  | [BCB:2:Database warning:ECB]    Make sure all users are out of Sage before uninstalling the Pervasive/Actian database engine on the server.Go to Programs and Features.Select the engine:  Actian Zen v15 Enterprise Server SP2Actian PSQL [version] for 300CRE v16.1 to 24.1Pervasive PSQL [version] for 300CRE v15.1 and olderRight-click and select Uninstall.Delete or rename these folders if they exist:  For 300CRE v16.1 and newer  C:\ProgramData\ActianC:\Program Files (x86)\ActianC:\Program Files\Actian)For 300CRE v15.1 or older  C:\ProgramData\Pervasive SoftwareC:\Program Files (x86)\Pervasive SoftwareC:\Program Files\Pervasive Software)Go to Windows Run or Search.Type regedit in the box and press Enter.If the following keys exist, rename them:  HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Pervasive SoftwareHKEY_LOCAL_MACHINE\SOFTWARE\Pervasive SoftwareHKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\ActianHKEY_LOCAL_MACHINE\SOFTWARE\Actian 
 
 
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