diff --git a/package.json b/package.json
index 9da0f23cac..141ec3a5a0 100644
--- a/package.json
+++ b/package.json
@@ -185,7 +185,6 @@
     "@kubernetes/client-node": "^0.15.1",
     "@sentry/electron": "^2.5.0",
     "@sentry/integrations": "^6.10.0",
-    "@types/which": "^2.0.1",
     "abort-controller": "^3.0.0",
     "array-move": "^3.0.1",
     "auto-bind": "^4.0.0",
@@ -194,6 +193,7 @@
     "byline": "^5.0.0",
     "chalk": "^4.1.0",
     "chokidar": "^3.4.3",
+    "command-exists": "1.2.9",
     "conf": "^7.0.1",
     "crypto-js": "^4.1.1",
     "electron-devtools-installer": "^3.2.0",
@@ -246,7 +246,6 @@
     "tempy": "^0.5.0",
     "url-parse": "^1.5.1",
     "uuid": "^8.3.2",
-    "which": "^2.0.2",
     "win-ca": "^3.2.0",
     "winston": "^3.3.3",
     "winston-console-format": "^1.0.8",
diff --git a/src/common/custom-errors.ts b/src/common/custom-errors.ts
index 0016af87ca..2cbc75ccf0 100644
--- a/src/common/custom-errors.ts
+++ b/src/common/custom-errors.ts
@@ -19,18 +19,15 @@
  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  */
 
-import path from "path";
-
 export class ExecValidationNotFoundError extends Error {
-  constructor(execPath: string) {
+  constructor(execPath: string, isAbsolute: boolean) {
+    super(`User Exec command "${execPath}" not found on host.`);
     let message = `User Exec command "${execPath}" not found on host.`;
 
-    if (!path.isAbsolute(execPath)) {
+    if (!isAbsolute) {
       message += ` Please ensure binary is found in PATH or use absolute path to binary in Kubeconfig`;
     }
-
-    super(message);
-
+    this.message = message; 
     this.name = this.constructor.name;
     Error.captureStackTrace(this, this.constructor);
   }
diff --git a/src/common/kube-helpers.ts b/src/common/kube-helpers.ts
index 4bd420e7b2..aff05e68c6 100644
--- a/src/common/kube-helpers.ts
+++ b/src/common/kube-helpers.ts
@@ -25,11 +25,11 @@ import path from "path";
 import os from "os";
 import yaml from "js-yaml";
 import logger from "../main/logger";
+import commandExists from "command-exists";
 import { ExecValidationNotFoundError } from "./custom-errors";
 import { Cluster, Context, newClusters, newContexts, newUsers, User } from "@kubernetes/client-node/dist/config_types";
 import { resolvePath } from "./utils";
 import Joi from "joi";
-import which from "which";
 
 export type KubeConfigValidationOpts = {
   validateCluster?: boolean;
@@ -295,17 +295,13 @@ export function validateKubeConfig(config: KubeConfig, contextName: string, vali
 
     // Validate exec command if present
     if (validateExec && user?.exec) {
-      try {
-        which.sync(user.exec.command);
+      const execCommand = user.exec["command"];
+      // check if the command is absolute or not
+      const isAbsolute = path.isAbsolute(execCommand);
 
-        // If this doesn't throw an error it also means that it has found the executable.
-      } catch (error) {
-        switch (error?.code) {
-          case "ENOENT":
-            return new ExecValidationNotFoundError(user.exec.command);
-          default:
-            return error;
-        }
+      // validate the exec struct in the user object, start with the command field
+      if (!commandExists.sync(execCommand)) {
+        return new ExecValidationNotFoundError(execCommand, isAbsolute);
       }
     }
 
diff --git a/src/renderer/components/+add-cluster/add-cluster.scss b/src/renderer/components/+add-cluster/add-cluster.scss
index 8abb38e9d0..faac757c40 100644
--- a/src/renderer/components/+add-cluster/add-cluster.scss
+++ b/src/renderer/components/+add-cluster/add-cluster.scss
@@ -50,11 +50,4 @@
     display: block;
     padding-top: 6px;
   }
-
-  .actions-panel {
-    .Spinner {
-      vertical-align: middle;
-      margin-left: $spacing;
-    }
-  }
 }
diff --git a/src/renderer/components/+add-cluster/add-cluster.tsx b/src/renderer/components/+add-cluster/add-cluster.tsx
index 16a6dec19e..e987c1d4bb 100644
--- a/src/renderer/components/+add-cluster/add-cluster.tsx
+++ b/src/renderer/components/+add-cluster/add-cluster.tsx
@@ -24,7 +24,7 @@ import "./add-cluster.scss";
 import type { KubeConfig } from "@kubernetes/client-node";
 import fse from "fs-extra";
 import { debounce } from "lodash";
-import { action, computed, observable, makeObservable, runInAction } from "mobx";
+import { action, computed, observable, makeObservable } from "mobx";
 import { observer } from "mobx-react";
 import path from "path";
 import React from "react";
@@ -41,7 +41,6 @@ import { SettingLayout } from "../layout/setting-layout";
 import MonacoEditor from "react-monaco-editor";
 import { ThemeStore } from "../../theme.store";
 import { UserStore } from "../../../common/user-store";
-import { Spinner } from "../spinner";
 
 interface Option {
   config: KubeConfig;
@@ -63,7 +62,6 @@ export class AddCluster extends React.Component {
   @observable kubeContexts = observable.map<string, Option>();
   @observable customConfig = "";
   @observable isWaiting = false;
-  @observable isCheckingInput = false;
   @observable errorText: string;
 
   constructor(props: {}) {
@@ -82,35 +80,14 @@ export class AddCluster extends React.Component {
     ].filter(Boolean);
   }
 
-  _refreshContexts = debounce(() => {
-    runInAction(() => {
-      try {
-        const text = this.customConfig.trim();
+  @action
+  refreshContexts = debounce(() => {
+    const { config, error } = loadConfigFromString(this.customConfig.trim() || "{}");
 
-        if (!text) {
-          return this.kubeContexts.clear();
-        }
-
-        const { config, error } = loadConfigFromString(text);
-
-        this.kubeContexts.replace(getContexts(config));
-        this.errorText = error?.toString();
-      } catch (error) {
-        this.kubeContexts.clear();
-        this.errorText = error?.toString() || "An error occured";
-      } finally {
-        this.isCheckingInput = false;
-      }
-    });
+    this.kubeContexts.replace(getContexts(config));
+    this.errorText = error?.toString();
   }, 500);
 
-  refreshContexts = () => {
-    // Clear the kubeContexts immediately
-    this.isCheckingInput = true;
-    this.kubeContexts.clear();
-    this._refreshContexts();
-  };
-
   @action
   addClusters = async () => {
     this.isWaiting = true;
@@ -168,7 +145,6 @@ export class AddCluster extends React.Component {
             tooltip={this.kubeContexts.size === 0 || "Paste in at least one cluster to add."}
             tooltipOverrideDisabled
           />
-          {this.isCheckingInput && <Spinner />}
         </div>
       </SettingLayout>
     );
diff --git a/yarn.lock b/yarn.lock
index ce76e9ac72..87a86e853b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2184,11 +2184,6 @@
     anymatch "^3.0.0"
     source-map "^0.6.0"
 
-"@types/which@^2.0.1":
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/@types/which/-/which-2.0.1.tgz#27ecd67f915b7c3d6ba552135bb1eecd66e63501"
-  integrity sha512-Jjakcv8Roqtio6w1gr0D7y6twbhx6gGgFGF5BLwajPpnOIOxFkakFhCq+LmyyeAz7BX6ULrjBOxdKaCDy+4+dQ==
-
 "@types/ws@^6.0.1":
   version "6.0.4"
   resolved "https://registry.yarnpkg.com/@types/ws/-/ws-6.0.4.tgz#7797707c8acce8f76d8c34b370d4645b70421ff1"
@@ -4115,6 +4110,11 @@ combined-stream@^1.0.6, combined-stream@^1.0.8, combined-stream@~1.0.6:
   dependencies:
     delayed-stream "~1.0.0"
 
+command-exists@1.2.9:
+  version "1.2.9"
+  resolved "https://registry.yarnpkg.com/command-exists/-/command-exists-1.2.9.tgz#c50725af3808c8ab0260fd60b01fbfa25b954f69"
+  integrity sha512-LTQ/SGc+s0Xc0Fu5WaKnR0YiygZkm9eKFvyS+fRsU7/ZWFF8ykFM6Pc9aCVf1+xasOOZpO3BAVgVrKvsqKHV7w==
+
 commander@2.9.0:
   version "2.9.0"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.9.0.tgz#9c99094176e12240cb22d6c5146098400fe0f7d4"