Using the above solution helped uninstall VS 2017, but when I tried to install it from scratch with 'ASP.NET and web development', 'Azure development' and '.NET Core cross-platform development' workloads, I got the following error:

The product failed to install the listed workloads and components due to one or more package failures.
Incomplete workloads  .NET Core cross-platform development (Microsoft.VisualStudio.Workload.NetCoreTools,version=15.0.26323.1)
Incomplete components  .NET Core 1.0 - 1.1 development tools (Microsoft.NetCore.ComponentGroup.Web,version=15.0.26208.0)  .NET Core 1.0.1 development tools (Microsoft.Net.Core.Component.SDK,version=15.0.26208.0)  Container development tools (Microsoft.VisualStudio.Component.DockerTools,version=15.0.26323.1)
You can search for solutions using the information below, modify your selections for the above workloads and components and retry the installation, or remove the product from your machine.
Following is a collection of individual package failures that led to the incomplete workloads and components above. To search for existing reports of these specific problems, please copy and paste the URL from each package failure into a web browser. If the issue has already been reported, you can find solutions or workarounds there. If the issue has not been reported, you can create a new issue where other people will be able to find solutions or workarounds.

Package 'Microsoft.Net.Core.SDK,version=15.0.26323.1,chip=x64' failed to install.  Search URL: https://aka.ms/VSSetupErrorReports?q=PackageId=Microsoft.Net.Core.SDK;PackageAction=Install;ReturnCode=1638  Impacted workloads  .NET Core cross-platform development (Microsoft.VisualStudio.Workload.NetCoreTools,version=15.0.26323.1)  Impacted components  .NET Core 1.0 - 1.1 development tools (Microsoft.NetCore.ComponentGroup.Web,version=15.0.26208.0)  .NET Core 1.0.1 development tools (Microsoft.Net.Core.Component.SDK,version=15.0.26208.0)  Container development tools (Microsoft.VisualStudio.Component.DockerTools,version=15.0.26323.1)  Log  C:\Users\obu\AppData\Local\Temp\dd_setup_20170408122419_209_Microsoft.Net.Core.SDK.log  Details  Command executed: "C:\ProgramData\Microsoft\VisualStudio\Packages\Microsoft.Net.Core.SDK,version=15.0.26323.1,chip=x64\dotnet-dev-win-x64.1.0.2.exe" "C:\Program Files (x86)\Microsoft Visual Studio\2017\Enterprise" /log "C:\Users\obu\AppData\Local\Temp\dd_setup_20170408122419_209_Microsoft.Net.Core.SDK.log" /quiet /norestart  Return code: 1638  Return code details: Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel.

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