What is o16setup.exe file ?

Most antivirus programs identify O16Setup.exe as malware—such as BitDefender identifies it as Application.KMSTool.B, and Microsoft identifies it as HackTool:Win32/AutoKMS.

Follow steps bellow to try fix the problem with o16setup.exe

1. Use cleanmgr

To run the command cleanmgr :
Press Windows key + Q.
Enter cmd in search box , followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command cleanmgr and press Enter.

2. Use sfc /scannow

To run the command sfc /scannow :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command sfc /scannow and press Enter.

3. uninstalling programs :

To uninstall unnecessary programs :
Open the Start menu (Press Windows key + X) .
Click the first menu item Programs and Features.
Search unnecessary programs in the list of installed programs, .
Click the software you want to uninstall.

4. using msconfig

To run the command msconfig :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command msconfig and press Enter.

5. Automatic Update

To run the command wuauclt /ShowWindowsUpdate:
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command wuauclt /ShowWindowsUpdate and press Enter.

6. Use resmon command

To run the command resmon :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command resmon and press Enter.

7. use DISM.exe

To run the command DISM.exe /Online /Cleanup-image /Restorehealth :
Press Windows key + Q.
Enter cmd in search box, followed by the combination Ctrl + Shift + Enter to run it as Administrator.
Enter the command DISM.exe /Online /Cleanup-image /Restorehealth and press Enter.

o16setup.exe descriptions

O16Setup.exe is not essential for Windows and will often cause problems. The file O16Setup.exe is located in a subfolder of the user’s profile folder (usually C:UsersUSERNAMEDownloadsMicrosoft Office 2016 Professional Plus 16.0.4229.1006 PreviewOffice_2016_16.0.4229.1006_en_ru_x86-x64_v2.8_by_Ratibor…).;The file size on Windows 10/8/7/XP is 512,512 bytes.;There is no file information. The program is not visible. The O16Setup.exe file is not a Windows system file.;O16Setup.exe is able to monitor applications and manipulate other programs.;Therefore the technical security rating is 84% dangerous.