Microsoft SharePoint Designer 2010 (64-bit)
Here are legitimate alternatives:
For SPO or SharePoint 2016/2019, SPFx is the modern client-side development model. No more ASPX page editing. microsoft+sharepoint+designer+2010+64bit+portable
He quickly connected to the site URL. The progress bar crawled, then turned green. He dove into the "Workflows" tab, found the snag—a loop that was eating the server's RAM—and hit Delete . With a few clicks, he republished a simplified version of the logic. microsoft+sharepoint+designer+2010+64bit+portable