Access denied error while installing feature

I was getting “Access denied” in command prompt when I tried to execute below command

Stsadm –o installfeature –name “featurename” –force

Solution:

1. Log in user was not added into Central Admin Database security group into SQL Server.

2. Log in user has to be in farm administrator/site collection users group in SharePoint site.

By adding my current Log in users into above two parts, I was able to successfully install feature.