Most antivirus programs identify UM.exe as malware—e.g. BitDefender identifies it as Adware.Widgi.D, and TrendMicro identifies it as TROJ_GEN.R0EBC0OGL16.
There are different programs associated with a um.exe' process. Processes with this name are usually responsible for running an update manager associated with the application. Checking the file location on the computer is recommended as it should be located in a subfolder of "C:\Program Files". The file may be considered malicious if located in "C:\Windows" or "C:\Windows\System32". Several anti-virus websites have either identified um.exe as a trojan virus or as malware. Scanning the file with a trusted anti-virus software is highly recommended.
UM stands for Update Manager
The free file information forum can help you find out how to remove it. If you have additional information about this file, please leave a comment or a suggestion for other users.
Description: UM.exe is not essential for Windows and will often cause problems. UM.exe is located in a subfolder of the user's profile folder or sometimes in a subfolder of "C:\Program Files".
Known file sizes on Windows 10/8/7/XP are 806,064 bytes (17% of all occurrences), 475,496 bytes and 12 more variants.
The process has no file description. The file is not a Windows core file. The software is loaded during the Windows boot process (see Registry key: Run). The program is not visible. UM.exe is able to monitor applications. Therefore the technical security rating is 80% dangerous.
Recommended: Identify UM.exe related errors
Important: You should check the UM.exe process on your PC to see if it is a threat. If Guardião has changed your browser's search engine and start page, you can recover your browser's default settings as follows:Reset default browser settings for Internet-Explorer ▾
The following programs have also been shown useful for a deeper analysis: ASecurity Task Manager examines the active UM process on your computer and clearly tells you what it is doing. Malwarebytes' well-known Banti-malware tool tells you if the UM.exe on your computer displays annoying ads, slowing it down. This type of unwanted adware program is not considered by some antivirus software to be a virus and is therefore not marked for cleanup.
A clean and tidy computer is the key requirement for avoiding PC trouble. 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.