To Add the Solution in SharePoint Add-SPSolution C:\YourFolder\SampleWebPart.wsp To Update your Solution in  SharePoint you will need this if you want to update the Webpart that is already installed Update-SPSolution –Identity SampleWebPart.wsp –LiteralPath C:\YourFolder\SampleWebPart.wsp –GACDeployment To Install the Solution to your  SharePoint Install-SPSolution -identity SampleWebPart.wsp -WebApplication http://yoursharepointserver -GACDeployment ---- If you want to install in all web application in one go Install-SPSolution -identity City_Wise_Requirements.wsp -AllWebApplications -GACDeployment Note: After install you need to populate the webpart by following steps  1) Go to site setting (Main site collection in case if you are in subsite)  2) Click on Under Web Design Gallery  > Web part 3) Click New Document 4) Select Web part and then click on populate button Now if something went horribly wrong or you just want to uninstall it you have to run this