The genuine PicasaMediaDetector.exe file is a software component of Picasa by Google.
PicasaMediaDetector.exe is an executable file that belongs to 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.
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 PicasaMediaDetector.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.
Description: PicasaMediaDetector.exe is not essential for the Windows OS and causes relatively few problems. The PicasaMediaDetector.exe file is located in a subfolder of "C:\Program Files" (e.g. C:\Program Files\Picasa\).
Known file sizes on Windows 10/8/7/XP are 443,968 bytes (74% of all occurrences), 421,888 bytes and 4 more variants.
It is not a Windows system file. The software starts upon Windows startup (see Registry key: DEFAULT\Run, Run, MACHINE\Run). It is a Verisign signed file. The file is digitally signed. PicasaMediaDetector.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 13% dangerous, however you should also read the user reviews.
Recommended: Identify PicasaMediaDetector.exe related errors
External information from Paul Collins:
Important: Some malware camouflages itself as PicasaMediaDetector.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the PicasaMediaDetector.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.
A clean and tidy computer is the key requirement for avoiding problems with PicasaMediaDetector. 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 PicasaMediaDetector.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.