What is start.cmd?

Please read below to decide for yourself whether the start.cmd 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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Start.cmd file information

More precise details about what the start.cmd process belongs to are not available. This is partly because the author is not identified.

Description: Start.cmd is not essential for the Windows OS and causes relatively few problems. The start.cmd file is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 216 bytes (50% of all occurrences) or 264 bytes. 
The program has a visible window. The software has no file description. The software is loaded during the Windows boot process (see Registry key: MACHINE\Run, User Shell Folders). The start.cmd file is not a Windows core file. start.cmd appears to be a compressed file. Therefore the technical security rating is 51% dangerous.

Recommended: Identify start.cmd related errors

If start.cmd is located in a subfolder of C:\Windows\System32, the security rating is 36% dangerous. The file size is 114 bytes. The program has a visible window. There is no description of the program. The software starts when Windows starts (see Registry key: MACHINE\Run, User Shell Folders). It is not a Windows system file. start.cmd appears to be a compressed file.

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

A clean and tidy computer is the key requirement for avoiding problems with start. 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 start.cmd 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

start.cmd [all]