Performance Counters for Windows Driver (pcw) Service Defaults in Windows 10

Performance Counters for Windows Driver by Microsoft Corporation.

Default Settings

Startup type:Boot
Display name:Performance Counters for Windows Driver
Service name:pcw
Service type:kernel
Error control:normal
Group:System Reserved
Path:%SystemRoot%\System32\drivers\pcw.sys
Registry key:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\pcw

Default Behavior

Performance Counters for Windows Driver is a kernel device driver. In Windows 10 it is starting by the operating system Boot Loader as a part of the driver stack for the boot volume. If Performance Counters for Windows Driver fails to start, the failure details are being recorded into Event Log. Then Windows 10 will start up and notify the user that the pcw service has failed to start due to the error.

Restore Default Startup Configuration for Performance Counters for Windows Driver

1. Run the Command Prompt as an administrator.

2. Copy the commands below, paste them into the command window and press ENTER:

sc config pcw start= boot
sc start pcw

3. Close the command window and restart the computer.

The pcw service is using the pcw.sys file that is located in the %WinDir%\System32\drivers folder. If the file is changed, damaged or deleted, you can restore its original version from Windows 10 installation media.