Error 1719: Windows installer service could not be accessed while installing client

Hi,

My envirnment is: Master & media windows 3008, Netbackup agent 7.0.1.

I want to install netbackup agent 7.0 at windows 7 machine

I faced a problem of Error 1719: Windows installer service could not be accessed while installing client

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VxLogServer Generated Log Files

NetBackup 7.0 Windows installation log

08-23-2015,15:22:31 : 08-23-2015,15:22:31 : Starting Setup
08-23-2015,15:22:31 : 08-23-2015,15:22:31 : Performing installation on host: HOD1014ITOCD03
08-23-2015,15:22:31 : 08-23-2015,15:22:31 : Checking for 32-bit processor on a 64-bit system.
08-23-2015,15:22:31 : 08-23-2015,15:22:31 : This 32-bit application cannot be installed on a 64-bit system. Insert the 64-bit CD-ROM and restart the install.

NetBackup 7.0 Windows installation log

08-24-2015,11:13:16 : 08-24-2015,11:13:16 : Starting Setup
08-24-2015,11:13:16 : 08-24-2015,11:13:16 : Performing installation on host: HOD1014ITOCD03
08-24-2015,11:13:16 : 08-24-2015,11:13:16 : Checking for 32-bit processor on a 64-bit system.
08-24-2015,11:14:06 : === Logging started: 8/24/2015 11:14:06 ===
08-24-2015,11:14:06 : Action 11:14:06: CostInitialize. Computing space requirements
08-24-2015,11:14:06 : Action start 11:14:06: CostInitialize.
08-24-2015,11:14:06 : Action ended 11:14:06: CostInitialize. Return value 1.
08-24-2015,11:14:06 : Action 11:14:06: FileCost. Computing space requirements
08-24-2015,11:14:06 : Action start 11:14:06: FileCost.
08-24-2015,11:14:06 : Action ended 11:14:06: FileCost. Return value 1.
08-24-2015,11:14:06 : Action 11:14:06: ResolveSource. Resolving source
08-24-2015,11:14:06 : Action start 11:14:06: ResolveSource.
08-24-2015,11:14:06 : Action ended 11:14:06: ResolveSource. Return value 1.
08-24-2015,11:14:06 : Action 11:14:06: CostFinalize. Computing space requirements
08-24-2015,11:14:06 : Action start 11:14:06: CostFinalize.
08-24-2015,11:14:06 : Action ended 11:14:06: CostFinalize. Return value 1.
08-24-2015,11:14:06 : Action 11:14:06: INSTALL.
08-24-2015,11:14:06 : Action start 11:14:06: INSTALL.
08-24-2015,11:14:06 : ERROR: Error 1719.The Windows Installer Service could not be accessed. This can occur if the Windows Installer is not correctly installed. Contact your support personnel for assistance.
08-24-2015,11:14:11 : Action ended 11:14:11: INSTALL. Return value 3.

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Could anybodyhelp me to resolve the problem?