Service 'Sitecore XConnect Search Indexer - xp0.xconnect-IndexWorker Cannot start service xp0.xconnect-IndexWorker on computer '

Question

am facing the issues while installing Sitecore 9, and getting below errors

I have a valid licence and solr is up and running and version is 6.2.2

[---------------------------------------------------------- StartServices [1] : ManageService --------------------------------------------------------------]
[StartServices [1]]:[Updating] xp0.xconnect-IndexWorker
Install-SitecoreConfiguration : Service 'Sitecore XConnect Search Indexer - xp0.xconnect-IndexWorker (xp0.xconnect-IndexWorker)' **cannot be started due to 
the following error: Cannot start service xp0.xconnect-IndexWorker on computer '.'.**
At C:\Users\sitecoretr\Downloads\OneDrive_2018-07-02\sitecore 9\SIFLess\SIFless-EZ-1530793277.ps1:42 char:1
+ Install-SitecoreConfiguration @xconnectParams
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Install-SitecoreConfiguration

[TIME] 00:03:35
Transcript stopped, output file is C:\Windows\system32\xconnect-xp0.180705 (20).log
Start-Service : Service 'Sitecore XConnect Search Indexer - xp0.xconnect-IndexWorker (xp0.xconnect-IndexWorker)' cannot be started due to the following 
error: Cannot start service xp0.xconnect-IndexWorker on computer '.'.
At C:\Program Files\WindowsPowerShell\Modules\SitecoreInstallFramework\1.2.1\Public\Tasks\Invoke-ManageServiceTask.ps1:40 char:33
+                     $instance | Start-Service
+                                 ~~~~~~~~~~~~~
    + CategoryInfo          : OpenError: (System.ServiceProcess.ServiceController:ServiceController) [Start-Service], ServiceCommandException
    + FullyQualifiedErrorId : CouldNotStartService,Microsoft.PowerShell.Commands.StartServiceCommand

The below error in the event viewer

The Sitecore XConnect Search Indexer - xp0.xconnect-IndexWorker service failed to start due to the following error: 
Access is denied

Answer 1

Try to add "Everyone" role and give full rights in WWW (rootfolder) XConnect Site.

Answer 2

I found one fix here

https://www.sitecorespark.com/blog/2019/8/sitecore-9-installation-xconnect-services-wont-start

Below line must be placed before the InstallServices task

 "SetIndexWorkerServicePermissionsFolder": {
        "Description": "Set permissions for the Index Worker service folder.",
        "Type": "FilePermissions",
        "Params": {
            "Path": "[joinpath(variable('Services.IndexWorker.InstallPath'))]",
            "Rights": [
                {
                    "User": "NT AUTHORITY\\LocalService",
                    "FileSystemRights": [ "FullControl" ],
                    "InheritanceFlags": [ "ContainerInherit", "ObjectInherit" ]
                }
            ]
        }
    },
    "SetMarketingAutomationServicePermissionsFolder": {
        "Description": "Set permissions for the Marketing Automation service folder.",
        "Type": "FilePermissions",
        "Params": {
            "Path": "[joinpath(variable('Services.MarketingAutomationEngine.InstallPath'))]",
            "Rights": [
                {
                    "User": "NT AUTHORITY\\LocalService",
                    "FileSystemRights": [ "FullControl" ],
                    "InheritanceFlags": [ "ContainerInherit", "ObjectInherit" ]
                }
            ]
        }
    },
    "SetProcessingEngineServicePermissionsFolder": {
        "Description": "Set permissions for the Processing Engine service folder.",
        "Type": "FilePermissions",
        "Params": {
            "Path": "[joinpath(variable('Services.ProcessingEngine.InstallPath'))]",
            "Rights": [
                {
                    "User": "NT AUTHORITY\\LocalService",
                    "FileSystemRights": [ "FullControl" ],
                    "InheritanceFlags": [ "ContainerInherit", "ObjectInherit" ]
                }
            ]
        }
    },