What is Picasa3.exe?

The genuine Picasa3.exe file is a software component of Picasa 3 by Google.
Picasa3.exe is an executable file that runs Picasa, an image management software and image viewer used to organize and edit digital photos. This file runs a process that indexes media files found on the computer. This is not a critical Windows component and should be removed if known to cause problems. Picasa was originally created by Lifescape, Inc. in 2002. It was acquired by Google in 2004 and is currently distributed as a freeware program. Picasa supports the Windows, Linux and Mac OS platforms. Picasa features image tagging, facial recognition, basic photo editing functions such as brightness and contrast controls, color enhancement, red eye reduction, as well as cropping. Images can be uploaded through the program to Picasa Web Albums and can even be shared on Google+. Google was founded in 1998 by Larry Page and Sergey Brin, Ph.D. students at Stanford. Google has since grown into one of the biggest companies in the world, offering hundreds of services, including webmail (Gmail), cloud storage (Google Drive), office software (Google Docs) and social networking services (Google+). Alexa, which provides web traffic data, lists Google as the world's most visited website. Its popularity has led to huge media coverage, including a major critique of the company over copyright, censorship, and privacy issues. Google is headquartered in Googleplex, Mountain View, California, USA.

Picasa3 stands for Picasa (version 3.0)

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 Picasa3.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.

Click to Run a Free Scan for Picasa3.exe related errors

Picasa3.exe file information

Windows Task Manager with Picasa3
Picasa3.exe process in Windows Task Manager

The process known as Picasa belongs to software Picasa 3 by Google (

Description: Picasa3.exe is not essential for the Windows OS and causes relatively few problems. The Picasa3.exe file is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 9,967,944 bytes (33% of all occurrences), 7,673,336 bytes or 11,057,008 bytes. 
The program has a visible window. Picasa3.exe is a Verisign signed file. The file is digitally signed. It is not a Windows system file. Picasa3.exe is able to record keyboard and mouse inputs, monitor applications and manipulate other programs. Therefore the technical security rating is 0% dangerous.

Uninstalling this variant: If problems with Picasa3.exe occur, you can visit the support page or uninstall the program using the Control Panel ⇒ Uninstall a ProgramPicasa 3.

Recommended: Identify Picasa3.exe related errors

Important: Some malware camouflages itself as Picasa3.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the Picasa3.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.


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Best practices for resolving Picasa3 issues

A clean and tidy computer is the key requirement for avoiding problems with Picasa3. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic 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 6resmon 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 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the Picasa3.exe process on your computer, the following programs have proven to be helpful: ASecurity 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. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

Picasa3.exe [all]