this is taken from the Sense Installation guide, and may help you with your issues:
Changing the user account used for the Qlik Sense services If you selected local system as user account type in the Service credentials screen and cleared the Start the Qlik Sense services when the setup is complete checkbox in the Ready to install screen, you can change the setup so that a dedicated service account is used to run the services instead of the local system account.
Do the following:
Create a dedicated service account. If the service account user does not have administrator privileges, you need to add the user to the following groups in Computer Management > System Tools > Local Users and Groups > Groups. Qlik Sense Service Users Performance Monitor Users Open the Control Panel and then select System and Security>Administrative Tools>Services. Proceed as follows for each Qlik Sense service in the list: Right-click the service and select Properties. Select the Log On tab and then This account. Enter the credentials for the dedicated service account and click OK. The services are as follows: Qlik Sense Repository Service, Qlik Sense Proxy Service, Qlik Sense Engine Service, Qlik Sense Scheduler Service, Qlik Sense Printing Service, and Qlik Sense Service Dispatcher Depending on your setup some of the services may not be available. Assign Full control permission for the dedicated service account to the folder %ProgramData%\Qlik\Sense. Start the Qlik Sense Service Dispatcher, and then the Qlik Sense Repository Service (QRS). Start the rest of the Qlik Sense services.
The dedicated account I use is Administrator of the VM. The only thing I was not able to do is to add the user to "Qlik Sense Service Users" and "Performance Monitor Users" groups since they does not exist on the VM.
But since the user is Administrator, I guess it is not usefull.