diff --git a/src/app/Fake.DotNet.Testing.MSTest/MSTest.fs b/src/app/Fake.DotNet.Testing.MSTest/MSTest.fs
index 29f2613fc9b..048bb05a938 100644
--- a/src/app/Fake.DotNet.Testing.MSTest/MSTest.fs
+++ b/src/app/Fake.DotNet.Testing.MSTest/MSTest.fs
@@ -8,20 +8,14 @@ module MSTest =
 
     open System
     open System.Text
+    open BlackFox.VsWhere
     open Fake.Core
+    open Fake.IO
     open Fake.Testing.Common
 
-    let internal mstestPaths =
-        [| @"[ProgramFilesX86]\Microsoft Visual Studio\2019\Enterprise\Common7\IDE\"
-           @"[ProgramFilesX86]\Microsoft Visual Studio\2019\Professional\Common7\IDE\"
-           @"[ProgramFilesX86]\Microsoft Visual Studio\2019\Community\Common7\IDE\"
-           @"[ProgramFilesX86]\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\"
-           @"[ProgramFilesX86]\Microsoft Visual Studio\2017\Professional\Common7\IDE\"
-           @"[ProgramFilesX86]\Microsoft Visual Studio\2017\Community\Common7\IDE\"
-           @"[ProgramFilesX86]\Microsoft Visual Studio 14.0\Common7\IDE"
-           @"[ProgramFilesX86]\Microsoft Visual Studio 12.0\Common7\IDE"
-           @"[ProgramFilesX86]\Microsoft Visual Studio 11.0\Common7\IDE"
-           @"[ProgramFilesX86]\Microsoft Visual Studio 10.0\Common7\IDE" |]
+    let private getAllVsPath () =
+        VsInstances.getWithPackage "Microsoft.VisualStudio.PackageGroup.TestTools.MSTestV2.Managed" false
+        |> List.map (fun vs -> Path.combine vs.InstallationPath "Common7\\Tools")
 
     let internal msTestExe =
         if Environment.isWindows then
@@ -86,7 +80,7 @@ module MSTest =
           Tests = []
           TimeOut = TimeSpan.FromMinutes 5.
           ToolPath =
-            match ProcessUtils.tryFindLocalTool "TOOL" msTestExe mstestPaths with
+            match ProcessUtils.tryFindLocalTool "TOOL" msTestExe (getAllVsPath ()) with
             | Some path -> path
             | None -> ""
           Details = []
diff --git a/src/app/Fake.DotNet.Testing.MSTest/paket.references b/src/app/Fake.DotNet.Testing.MSTest/paket.references
index a8342f4b742..34fc6a37d04 100644
--- a/src/app/Fake.DotNet.Testing.MSTest/paket.references
+++ b/src/app/Fake.DotNet.Testing.MSTest/paket.references
@@ -2,3 +2,4 @@ group fakemodule
 
 FSharp.Core
 NETStandard.Library
+BlackFox.VsWhere
diff --git a/src/app/Fake.DotNet.Testing.VSTest/VSTest.fs b/src/app/Fake.DotNet.Testing.VSTest/VSTest.fs
index af9209075a0..ecfd8d25ed7 100644
--- a/src/app/Fake.DotNet.Testing.VSTest/VSTest.fs
+++ b/src/app/Fake.DotNet.Testing.VSTest/VSTest.fs
@@ -2,6 +2,7 @@
 
 open Fake.Core
 open Fake.Testing.Common
+open BlackFox.VsWhere
 open System
 open System.IO
 open System.Text
@@ -12,11 +13,11 @@ open System.Text
 [<RequireQualifiedAccess>]
 module VSTest =
 
-    let private vsTestPaths =
-        [| @"[ProgramFilesX86]\Microsoft Visual Studio\2017\Enterprise\Common7\IDE\CommonExtensions\Microsoft\TestWindow"
-           @"[ProgramFilesX86]\Microsoft Visual Studio 14.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow"
-           @"[ProgramFilesX86]\Microsoft Visual Studio 12.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow"
-           @"[ProgramFilesX86]\Microsoft Visual Studio 11.0\Common7\IDE\CommonExtensions\Microsoft\TestWindow" |]
+    let private guessVSTestPaths () =
+        let vsTestRelativePath = @"Common7\IDE\CommonExtensions\Microsoft\TestWindow"
+
+        VsInstances.getAll ()
+        |> List.map (fun vs -> Fake.IO.Path.combine vs.InstallationPath vsTestRelativePath)
 
     let private vsTestExe =
         if Environment.isMono then
@@ -112,7 +113,7 @@ module VSTest =
           ListLoggers = false
           ListSettingsProviders = false
           ToolPath =
-            match ProcessUtils.tryFindFile vsTestPaths vsTestExe with
+            match ProcessUtils.tryFindFile (guessVSTestPaths ()) vsTestExe with
             | Some path -> path
             | None -> ""
           WorkingDir = null
diff --git a/src/app/Fake.DotNet.Testing.VSTest/paket.references b/src/app/Fake.DotNet.Testing.VSTest/paket.references
index a8342f4b742..34fc6a37d04 100644
--- a/src/app/Fake.DotNet.Testing.VSTest/paket.references
+++ b/src/app/Fake.DotNet.Testing.VSTest/paket.references
@@ -2,3 +2,4 @@ group fakemodule
 
 FSharp.Core
 NETStandard.Library
+BlackFox.VsWhere