diff --git a/types/openfin/_v2/api/system/host-specs.d.ts b/types/openfin/_v2/api/system/host-specs.d.ts
index 2c5a134aea..dfd3e665fd 100644
--- a/types/openfin/_v2/api/system/host-specs.d.ts
+++ b/types/openfin/_v2/api/system/host-specs.d.ts
@@ -14,9 +14,11 @@ export interface GpuInfo {
     name: string;
 }
 export interface HostSpecs {
-    cpu: CpuInfo[];
-    memory: number;
+    aeroGlassEnabled?: boolean;
     arch: string;
-    name: string;
+    cpus: CpuInfo[];
     gpu: GpuInfo;
+    memory: number;
+    name: string;
+    screenSaver?: boolean;
 }
diff --git a/types/openfin/_v2/api/system/system.d.ts b/types/openfin/_v2/api/system/system.d.ts
index 497bd5f358..aa0467f340 100644
--- a/types/openfin/_v2/api/system/system.d.ts
+++ b/types/openfin/_v2/api/system/system.d.ts
@@ -65,6 +65,13 @@ import { SystemEvents } from '../events/system';
  * @typedef { Object } CookieOption
  * @property { string } name The name of the cookie
  */
+/**
+ * CpuInfo interface
+ * @typedef { Object } CpuInfo
+ * @property { string } model The model of the cpu
+ * @property { number } speed The number in MHz
+ * @property { Time } times The numbers of milliseconds the CPU has spent in different modes.
+ */
 /**
 * CrashReporterOption interface
 * @typedef { Object } CrashReporterOption
@@ -107,19 +114,35 @@ import { SystemEvents } from '../events/system';
  * @property { string } uuid The uuid of the external connection
  */
 /**
-* ExternalProcessRequestType interface
-* @typedef { Object } ExternalProcessRequestType
-* @property { string } path The file path to where the running application resides
-* @property { string } arguments The argument passed to the running application
-* @property { Object } listener This is described in the {LaunchExternalProcessListner} type definition
-*/
+ * ExternalProcessRequestType interface
+ * @typedef { Object } ExternalProcessRequestType
+ * @property { string } path The file path to where the running application resides
+ * @property { string } arguments The argument passed to the running application
+ * @property { Object } listener This is described in the {LaunchExternalProcessListner} type definition
+ */
 /**
-* GetLogRequestType interface
-* @typedef { Object } GetLogRequestType
-* @property { string } name The name of the running application
-* @property { number } endFile The file length of the log file
-* @property { number } sizeLimit The set size limit of the log file
-*/
+ * GetLogRequestType interface
+ * @typedef { Object } GetLogRequestType
+ * @property { string } name The name of the running application
+ * @property { number } endFile The file length of the log file
+ * @property { number } sizeLimit The set size limit of the log file
+ */
+/**
+ * GpuInfo interface
+ * @typedef { Object } GpuInfo
+ * @property { string } name The graphics card name
+ */
+/**
+ * HostSpecs interface
+ * @typedef { Object } HostSpecs
+ * @property { boolean } aeroGlassEnabled Value to check if Aero Glass theme is supported on Windows platforms
+ * @property { string } arch "x86" for 32-bit or "x86_64" for 64-bit
+ * @property { Array<CpuInfo> } cpus The same payload as Node's os.cpus()
+ * @property { GpuInfo } gpu The graphics card name
+ * @property { number } memory The same payload as Node's os.totalmem()
+ * @property { string } name The OS name and version/edition
+ * @property { boolean } screenSaver Value to check if screensaver is running. Supported on Windows only
+ */
 /**
  * Identity interface
  * @typedef { Object } Identity
@@ -183,6 +206,15 @@ import { SystemEvents } from '../events/system';
  * @property { number } timeout Time out period before the running application terminates
  * @property { boolean } killtree Value to terminate the running application
  */
+/**
+ * Time interface
+ * @typedef { Object } Time
+ * @property { number } user The number of milliseconds the CPU has spent in user mode
+ * @property { number } nice The number of milliseconds the CPU has spent in nice mode
+ * @property { number } sys The number of milliseconds the CPU has spent in sys mode
+ * @property { number } idle The number of milliseconds the CPU has spent in idle mode
+ * @property { number } irq The number of milliseconds the CPU has spent in irq mode
+ */
 /**
  * WindowDetail interface
  * @typedef { Object } WindowDetail
@@ -372,7 +404,7 @@ export default class System extends EmitterBase<SystemEvents> {
     getRvmInfo(): Promise<RVMInfo>;
     /**
      * Retrieves system information.
-     * @return {Promise.<Hostspecs>}
+     * @return {Promise.<HostSpecs>}
      * @tutorial System.getHostSpecs
      */
     getHostSpecs(): Promise<HostSpecs>;
diff --git a/types/openfin/index.d.ts b/types/openfin/index.d.ts
index fb9a6fdc1d..fbde514cb0 100644
--- a/types/openfin/index.d.ts
+++ b/types/openfin/index.d.ts
@@ -33,6 +33,7 @@ import { CookieInfo, CookieOption } from './_v2/api/system/cookie';
 import { AppAssetInfo, AppAssetRequest, RuntimeDownloadOptions, RuntimeDownloadProgress } from './_v2/api/system/download-asset';
 import { DownloadPreloadInfo, DownloadPreloadOption } from './_v2/api/system/download-preload';
 import { EntityInfo } from './_v2/api/system/entity';
+import { HostSpecs } from './_v2/api/system/host-specs';
 import { ProcessInfo } from './_v2/api/system/process';
 import { RegistryInfo } from './_v2/api/system/registry-info';
 import { WindowDetail, WindowInfo } from './_v2/api/system/window';
@@ -718,7 +719,7 @@ declare namespace fin {
         /**
          * Retrieves system information.
          */
-        getHostSpecs(callback?: (info: HostSpecInfo) => void, errorCallback?: (reason: string) => void): void;
+        getHostSpecs(callback?: (info: HostSpecs) => void, errorCallback?: (reason: string) => void): void;
         /**
          * Retrieves the contents of the log with the specified filename.
          */
@@ -832,61 +833,6 @@ declare namespace fin {
         updateProxySettings(type: string, address: string, port: number, callback?: () => void, errorCallback?: (reason: string) => void): void;
     }
 
-    interface HostSpecInfo {
-        /**
-         * "x86" for 32-bit or "x86_64" for 64-bit
-         */
-        arch: string;
-        /**
-         * Same payload as Node's os.cpus()
-         */
-        cpus: NodeCpuInfo[];
-        gpu: {
-            /**
-             * Graphics card name
-             */
-            name: string;
-        };
-        /**
-         * Same payload as Node's os.totalmem()
-         */
-        memory: number;
-        /**
-         * OS name and version/edition
-         */
-        name: string;
-    }
-
-    interface NodeCpuInfo {
-        model: string;
-        /**
-         * in MHz
-         */
-        speed: number;
-        times: {
-            /**
-             * The number of milliseconds the CPU has spent in user mode.
-             */
-            user: number;
-            /**
-             * The number of milliseconds the CPU has spent in nice mode.
-             */
-            nice: number;
-            /**
-             * The number of milliseconds the CPU has spent in sys mode.
-             */
-            sys: number;
-            /**
-             * The number of milliseconds the CPU has spent in idle mode.
-             */
-            idle: number;
-            /**
-             * The number of milliseconds the CPU has spent in irq mode.
-             */
-            irq: number;
-        };
-    }
-
     interface LogInfo {
         /**
          * the filename of the log