What is WinSAT.exe and how to disable it

SC2 2017-05-29

2021-08-30

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When the power of the PC was turned on, the command prompt suddenly appeared, and the first-looking program called WinSAT.exe started to run "Windows System Evaluation (Winsat.exe)".

When I checked,

WinSAT.exe is a Microsoft official program called "Windows System Evaluation Tool", and was benchmark software for system evaluation of Windows OS.

It was introduced in Windows Vista and is installed in Windows 10.

The result of executing WinSAT.exe is displayed as "Windows Experience Index".

The PC I own had a Windows Experience Index rating of 2.3.

This article
I'm taking note of what I looked up in the Windows Experience Index.

[content]

Where WinSAT.exe is set to start
How to suppress the operation of WinSAT.exe

Windows Experience Index

Control Panel> System and Security> System> Evaluation

The Windows Experience Index was first included in Windows Vista.

And

I found that the Windows OS refers to the value of the Windows Experience Index to limit the functions that can be used, but it takes more time to dig deeper into which functions are specifically restricted.

I have a few laptops, but laptops have a hard time updating their hardware configuration, so there's little you can do to improve your Windows Experience Index score.

The Windows Experience Index is a Microsoft official program, so it seems that it was useful as a benchmark index for people in a certain industry such as the second-hand sales industry, but for me, it is a program that just steals the CPU power of the PC.

For Windows 8.1-10, the Windows Experience Index has been removed from the GUI, so the score will not be calculated unexpectedly like this time, but Winsat.exe is installed.

The score value can be calculated if necessary.


OS	Winsat.exe
Windows 7	Effectiveness
Windows 8.1	Disabled (program implemented)
Windows 10	Disabled (program implemented)

When WinSAT.exe starts

According to support.microsoft.com, Windows 7 is scheduled to start WinSAT.exe after a certain idle time, regardless of the Windows power plan.

And WinSAT.exe is registered in the task scheduler.

Windows keeps counting idle time regardless of the active power plan.

After 15 minutes of idle time, WinSAT becomes active as part of the idle scheduled task.

WinSAT changes the active power plan to High Performance. It has a display idle time of more than 15 minutes.

If the High Performance plan is activated and the idle time exceeds 15 minutes, the display will turn off.
support.microsoft.com

How to suppress the operation of WinSAT.exe

If WinSAT.exe is registered in the Task Scheduler in a valid state, it may start suddenly like this time.

Therefore,

Winsat.exe will not start if "Disable" or delete WinSAT registered in Task Scheduler.

Reference: Screen with WinSAT disabled

Steps to disable Winsat.exe

Launch Task Scheduler to delete or disable the WinSAT.exe execution task.

1. Start the task scheduler

Management Tool> Task Scheduler

2. Name: Find WinSAT

Management Tools> Task Scheduler> Task Scheduler Library> Microsoft> Windows> Maintenance> WinSAT

Look for WinSAT in the Task Scheduler Name column.

3. Disable WinSAT

Right-click on WinSAT and select Disable.

Or delete it.

Afterword

I think there may be a certain number of people who are using the Windows OS without knowing the existence of the task scheduler.

Programs registered in the task scheduler can be executed in administrator mode.

Software with bad manners such as spyware will leave updaters in the task scheduler and services even if it is uninstalled.

in this case,

Until the updater is removed, the updater will run at the same time as the PC starts and consume resources.

If a malicious program is registered in the task scheduler (or service), it is possible that the program will start at the same time that Windows starts and send files and passwords saved on the PC to the outside.

The Google Chrome updater is registered in the task scheduler, service, etc., but this is not well known, so it seems that some people are worried that they can't stop the automatic update of Chrome, but they can't.

Please read the related article on how to stop the automatic update of Chrome.

Bad software is often found in China. See the spy label article for an example of that.

External link

Verification: Windows 7 32-bit /64-bit

：SC2