What is WashIdx.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the WashIdx.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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WashIdx.exe file information

Windows Task Manager with WashIdx
WashIdx.exe process in Windows Task Manager

The process known as Index.dat bleaching tool belongs to software Wash Index.dat by Webroot Software (

Description: WashIdx.exe is not essential for the Windows OS and causes relatively few problems. The file WashIdx.exe is located in a subfolder of "C:\Program Files" (mostly C:\Program Files\Washer\ or C:\Program Files\Webroot\Washer\). Known file sizes on Windows 10/8/7/XP are 72,704 bytes (17% of all occurrences), 64,512 bytes and 6 more variants. 
The program has a visible window. The software starts upon Windows startup (see Registry key: RunOnce, MACHINE\RunOnce, MACHINE\RunServicesOnce). It is not a Windows system file. There is no information about the author of the file. Therefore the technical security rating is 36% dangerous; however you should also read the user reviews.

Uninstalling this variant: If there are any problems with WashIdx.exe, you can also uninstall the program using the Control Panel ⇒ Uninstall a ProgramWindow Washer or look for help on the website.

Recommended: Identify WashIdx.exe related errors

External information from Paul Collins:

Important: Some malware camouflages itself as WashIdx.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the WashIdx.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

It is a program called "Window Washer", its a program that clears up space on your computer
  kc m  
It cleans internet cache, history, temp files... and much more.
    (further information)
I use "Window Washer" at home and office.
Don't sweat it. Part of a nifty program called Window Washer, which cleans up your registry and much more.
this is a program called "windows washer" that clears IE history/cookies and other non important files
Comes with "Window Washer" which is a fantastic program
  Liz   (further information)
Window Washer program "very safe"

Summary: Average user rating of WashIdx.exe: based on 5 votes with 7 user comments. 4 users think WashIdx.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 2 users don't grade WashIdx.exe ("not sure about it").

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Best practices for resolving WashIdx issues

A clean and tidy computer is the key requirement for avoiding problems with WashIdx. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the WashIdx.exe process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

WashIdx.exe [all]