diff --git a/news/2 Fixes/9490.md b/news/2 Fixes/9490.md
new file mode 100644
index 000000000000..c61cc3450333
--- /dev/null
+++ b/news/2 Fixes/9490.md	
@@ -0,0 +1 @@
+Disable use of `conda run`.
diff --git a/src/client/common/process/pythonExecutionFactory.ts b/src/client/common/process/pythonExecutionFactory.ts
index 8626cd33c7ca..05498f1c2d45 100644
--- a/src/client/common/process/pythonExecutionFactory.ts
+++ b/src/client/common/process/pythonExecutionFactory.ts
@@ -52,17 +52,6 @@ export class PythonExecutionFactory implements IPythonExecutionFactory {
         const processLogger = this.serviceContainer.get<IProcessLogger>(IProcessLogger);
         processService.on('exec', processLogger.logProcess.bind(processLogger));
 
-        // Don't bother getting a conda execution service instance if we haven't fetched the list of interpreters yet.
-        // Also, without this hasInterpreters check smoke tests will time out
-        const interpreterService = this.serviceContainer.get<IInterpreterService>(IInterpreterService);
-        const hasInterpreters = await interpreterService.hasInterpreters;
-        if (hasInterpreters) {
-            const condaExecutionService = await this.createCondaExecutionService(pythonPath, processService);
-            if (condaExecutionService) {
-                return condaExecutionService;
-            }
-        }
-
         if (this.windowsStoreInterpreter.isWindowsStoreInterpreter(pythonPath)) {
             return new WindowsStorePythonProcess(this.serviceContainer, processService, pythonPath, this.windowsStoreInterpreter);
         }
@@ -128,16 +117,10 @@ export class PythonExecutionFactory implements IPythonExecutionFactory {
         processService.on('exec', processLogger.logProcess.bind(processLogger));
         this.serviceContainer.get<IDisposableRegistry>(IDisposableRegistry).push(processService);
 
-        // Allow parts of the code to ignore conda run.
-        if (!options.bypassCondaExecution) {
-            const condaExecutionService = await this.createCondaExecutionService(pythonPath, processService);
-            if (condaExecutionService) {
-                return condaExecutionService;
-            }
-        }
-
         return new PythonExecutionService(this.serviceContainer, processService, pythonPath);
     }
+    // Not using this function for now because there are breaking issues with conda run (conda 4.8, PVSC 2020.1).
+    // See https://github.com/microsoft/vscode-python/issues/9490
     public async createCondaExecutionService(pythonPath: string, processService?: IProcessService, resource?: Uri): Promise<CondaExecutionService | undefined> {
         const processServicePromise = processService ? Promise.resolve(processService) : this.processServiceFactory.create(resource);
         const [condaVersion, condaEnvironment, condaFile, procService] = await Promise.all([
diff --git a/src/test/common/process/condaExecutionService.unit.test.ts b/src/test/common/process/condaExecutionService.unit.test.ts
index 8ef07c408684..6956a17d333e 100644
--- a/src/test/common/process/condaExecutionService.unit.test.ts
+++ b/src/test/common/process/condaExecutionService.unit.test.ts
@@ -24,7 +24,10 @@ suite('CondaExecutionService', () => {
         serviceContainer.setup(s => s.get<IFileSystem>(IFileSystem)).returns(() => fileSystem.object);
     });
 
-    test('getExecutionInfo with a named environment should return execution info using the environment name', () => {
+    test('getExecutionInfo with a named environment should return execution info using the environment name', function() {
+        // tslint:disable-next-line:no-invalid-this
+        return this.skip();
+
         const environment = { name: 'foo', path: 'bar' };
         executionService = new CondaExecutionService(serviceContainer.object, processService.object, pythonPath, condaFile, environment);
 
@@ -33,7 +36,10 @@ suite('CondaExecutionService', () => {
         expect(result).to.deep.equal({ command: condaFile, args: ['run', '-n', environment.name, 'python', ...args] });
     });
 
-    test('getExecutionInfo with a non-named environment should return execution info using the environment path', async () => {
+    test('getExecutionInfo with a non-named environment should return execution info using the environment path', async function() {
+        // tslint:disable-next-line:no-invalid-this
+        return this.skip();
+
         const environment = { name: '', path: 'bar' };
         executionService = new CondaExecutionService(serviceContainer.object, processService.object, pythonPath, condaFile, environment);
 
diff --git a/src/test/common/process/pythonExecutionFactory.unit.test.ts b/src/test/common/process/pythonExecutionFactory.unit.test.ts
index e857df37e4b9..86a3471ab00d 100644
--- a/src/test/common/process/pythonExecutionFactory.unit.test.ts
+++ b/src/test/common/process/pythonExecutionFactory.unit.test.ts
@@ -212,7 +212,10 @@ suite('Process - PythonExecutionFactory', () => {
                 expect(service).instanceOf(WindowsStorePythonProcess);
             });
 
-            test('Ensure `create` returns a CondaExecutionService instance if createCondaExecutionService() returns a valid object', async () => {
+            test('Ensure `create` returns a CondaExecutionService instance if createCondaExecutionService() returns a valid object', async function() {
+                // tslint:disable-next-line:no-invalid-this
+                return this.skip();
+
                 const pythonPath = 'path/to/python';
                 const pythonSettings = mock(PythonSettings);
 
@@ -234,7 +237,10 @@ suite('Process - PythonExecutionFactory', () => {
                 expect(service).instanceOf(CondaExecutionService);
             });
 
-            test('Ensure `create` returns a PythonExecutionService instance if createCondaExecutionService() returns undefined', async () => {
+            test('Ensure `create` returns a PythonExecutionService instance if createCondaExecutionService() returns undefined', async function() {
+                // tslint:disable-next-line:no-invalid-this
+                return this.skip();
+
                 const pythonPath = 'path/to/python';
                 const pythonSettings = mock(PythonSettings);
                 when(processFactory.create(resource)).thenResolve(processService.object);
@@ -253,7 +259,10 @@ suite('Process - PythonExecutionFactory', () => {
                 expect(service).instanceOf(PythonExecutionService);
             });
 
-            test('Ensure `createActivatedEnvironment` returns a CondaExecutionService instance if createCondaExecutionService() returns a valid object', async () => {
+            test('Ensure `createActivatedEnvironment` returns a CondaExecutionService instance if createCondaExecutionService() returns a valid object', async function() {
+                // tslint:disable-next-line:no-invalid-this
+                return this.skip();
+
                 const pythonPath = 'path/to/python';
                 const pythonSettings = mock(PythonSettings);
 
@@ -272,13 +281,17 @@ suite('Process - PythonExecutionFactory', () => {
                     verify(pythonSettings.pythonPath).once();
                     verify(condaService.getCondaEnvironment(pythonPath)).once();
                 } else {
+                    // @ts-ignore
                     verify(condaService.getCondaEnvironment(interpreter.path)).once();
                 }
 
                 expect(service).instanceOf(CondaExecutionService);
             });
 
-            test('Ensure `createActivatedEnvironment` returns a PythonExecutionService instance if createCondaExecutionService() returns undefined', async () => {
+            test('Ensure `createActivatedEnvironment` returns a PythonExecutionService instance if createCondaExecutionService() returns undefined', async function() {
+                // tslint:disable-next-line:no-invalid-this
+                return this.skip();
+
                 let createInvoked = false;
                 const pythonPath = 'path/to/python';
                 const mockExecService = 'mockService';