Windows 7 Services

Performance Counters for Windows Driver - Windows 7 Service

Performance Counters for Windows Driver by Microsoft Corporation.

This service also exists in Windows 10 and 8.

Startup Type

Windows 7 edition without SP SP1
Starter Boot Boot
Home Basic Boot Boot
Home Premium Boot Boot
Professional Boot Boot
Ultimate Boot Boot
Enterprise Boot Boot

Default Properties

Display name:Performance Counters for Windows Driver
Service name:pcw
Error control:normal

Default Behavior

The Performance Counters for Windows Driver service is a kernel driver. If the Performance Counters for Windows Driver fails to load or initialize, the error is recorded into the Event Log. Windows 7 startup should proceed, but a message box is displayed informing you that the pcw service has failed to start.

Restore Default Startup Type for Performance Counters for Windows Driver

Automated Restore

1. Select your Windows 7 edition and Service Pack, and then click on the Download button below.

2. Save the RestorePerformanceCountersforWindowsDriverWindows7.bat file to any folder on your hard drive.

3. Right-click the downloaded batch file and select Run as administrator.

4. Restart the computer to save changes.

Note. Make sure that the pcw.sys file exists in the %WinDir%\System32\drivers folder. If this file is missing you can try to restore it from your Windows 7 installation media.