Build step 'Windows PowerShell' marked build as failure in jenkins - jenkins

Question

I am trying to run a simple powershell script as a post build windows powershell step.
the command I have given is powershell -File test.ps1.
the test.ps1 file has a simple write-host that says: Write-Host "Hello how are you doing"
the build is a maven project and runs fine with out the inclusion of the windows powershell post step. However, with the inclusion of the powershell script it fails and throws the following error-
[JENKINS] Archiving C:\Jenkins\workspace\WLR3\pom.xml to aBILLity/NxTier/1.0-SNAPSHOT/NxTier-1.0-SNAPSHOT.pom
[WLR3] $ powershell.exe -NonInteractive -ExecutionPolicy ByPass "& 'C:\Users\TEST_R~1\AppData\Local\Temp\jenkins9080398754273983665.ps1'"
The system cannot find the file specified
FATAL: command execution failed
java.io.IOException: CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)
at java.lang.ProcessImpl.start(ProcessImpl.java:137)
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
Caused: java.io.IOException: Cannot run program "powershell.exe" (in directory "C:\Jenkins\workspace\WLR3"): CreateProcess error=2, The system cannot find the file specified
at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
at hudson.Proc$LocalProc.<init>(Proc.java:249)
at hudson.Proc$LocalProc.<init>(Proc.java:218)
at hudson.Launcher$LocalLauncher.launch(Launcher.java:929)
at hudson.Launcher$ProcStarter.start(Launcher.java:449)
at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:109)
at hudson.tasks.CommandInterpreter.perform(CommandInterpreter.java:66)
at hudson.tasks.BuildStepMonitor$1.perform(BuildStepMonitor.java:20)
at hudson.model.AbstractBuild$AbstractBuildExecution.perform(AbstractBuild.java:744)
at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.build(MavenModuleSetBuild.java:939)
at hudson.maven.MavenModuleSetBuild$MavenModuleSetBuildExecution.doRun(MavenModuleSetBuild.java:890)
at hudson.model.AbstractBuild$AbstractBuildExecution.run(AbstractBuild.java:504)
at hudson.model.Run.execute(Run.java:1794)
at hudson.maven.MavenModuleSetBuild.run(MavenModuleSetBuild.java:544)
at hudson.model.ResourceController.execute(ResourceController.java:97)
at hudson.model.Executor.run(Executor.java:429)
Build step 'Windows PowerShell' marked build as failure
channel stopped
any help would be much appreciated!
thanks a lot!