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 SearchIndexer.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.
The process known as Microsoft Windows Search Indexer or Windows Appliction or Indexeur Microsoft Windows Search or Microsoft Windows Search-Indexerstellung belongs to software Microsoft Windows Operating System or Windows Search or Windows Application or Windows Search, Windows Search, Windows Search by Microsoft (www.microsoft.com).
Description: The original SearchIndexer.exe from Microsoft is an important part of Windows, but often causes problems. SearchIndexer.exe is located in the C:\Windows\System32 folder.
Known file sizes on Windows 10/8/7/XP are 439,808 bytes (44% of all occurrences), 427,520 bytes and 19 more variants.
The program is not visible. The SearchIndexer.exe file is a Microsoft signed file. The file is not a Windows system file. Therefore the technical security rating is 11% dangerous, however you should also read the user reviews.
Recommended: Identify SearchIndexer.exe related errors
Is SearchIndexer.exe a virus? No, it is not. The true SearchIndexer.exe file is a safe Microsoft Windows system process, called "Microsoft Windows Search Indexer".
However, writers of malware programs, such as viruses, worms, and Trojans deliberately give their processes the same file name to escape detection. Viruses with the same file name are for instance Trojan.Generic.9580579 (detected by F-Secure), and not-a-virus:RiskTool.Win32.BitCoinMiner.ggn or not-a-virus:RiskTool.Win32.BitCoinMiner.fqs (detected by Kaspersky).
To ensure that no rogue SearchIndexer.exe is running on your PC, click here to run a Free Malware Scan.
How to recognize suspicious variants?
If SearchIndexer.exe is located in a subfolder of the user's profile folder, the security rating is 56% dangerous. The file size is 653,326 bytes (24% of all occurrences), 1,814,528 bytes and 6 more variants. There is no information about the author of the file. The program has no visible window. It is not a Windows system file. SearchIndexer.exe is able to record keyboard and mouse inputs, hide itself and manipulate other programs.
If SearchIndexer.exe is located in a subfolder of C:\, the security rating is 46% dangerous. The file size is 4,096 bytes. The program has a visible window. There is no information about the author of the file. The application starts when Windows starts (see Registry key: Run, MACHINE\Run). The SearchIndexer.exe file is not a Windows system file. SearchIndexer.exe appears to be a compressed file.
If SearchIndexer.exe is located in a subfolder of "C:\Program Files", the security rating is 100% dangerous. The file size is 561,664 bytes.
Important: Some malware disguises itself as SearchIndexer.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the SearchIndexer.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 SearchIndexer. 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 SearchIndexer.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.