What is Firstrun.exe?

Firstrun.exe is part of MicrosoftOffice and developed by Microsoft Corporation according to the Firstrun.exe file information. In certain cases, malicious trackers and scripts can disguise themselves as legitimate files, like Firstrun.exe, leading to glitches, overload and system malfunctions.

In such cases, Firstrun.exe can create unnecessary records and folders in the Windows registry. Check your PC to eliminate possible application conflicts and system failures.

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Firstrun.exe's description is "MicrosoftOffice".

Firstrun.exe is digitally signed by Microsoft Corporation.

Firstrun.exe is an .exe file.

Firstrun.exe is usually located in the following folder:

%PROGRAMFILES(X64)%\Microsoft Office 15\root\office15\firstrun.exe

Firstrun.exe basic information

Description
MicrosoftOffice
Internal Name
firstrun.exe
Version
15.0.4128.1022
Hash
0DE067430A22610AF959F0552586D102

Firstrun.exe running processes

%PROGRAMFILES(X64)%\microsoft office 15\root\vfs\programfilescommonx86\microsoft shared\OFFICE15\MSOSQM.EXE
%PROGRAMFILES(X64)%\microsoft office 15\root\vfs\programfilescommonx86\microsoft shared\OFFICE15\MSOSQM.EXE

Free check to identify Firstrun.exe related errors.

List of the actions Firstrun.exe executes on a user's PC
HKEY_USERS\%ID-USER-SID%_CLASSES\VirtualStore\MACHINE\SOFTWARE\MICROSOFT\Office\15.0\ClickToRun\REGISTRY\MACHINE\SYSTEM\CurrentControlSet\Services\WinSock2 new registry key created
HKEY_USERS\%ID-USER-SID%_CLASSES\VirtualStore\MACHINE\SOFTWARE\MICROSOFT\Office\15.0\ClickToRun\REGISTRY\MACHINE\SYSTEM\CurrentControlSet\Services\WinSock2\Parameters new registry key created
HKEY_USERS\%ID-USER-SID%_CLASSES\VirtualStore\MACHINE\SOFTWARE\MICROSOFT\Office\15.0\ClickToRun\REGISTRY\MACHINE\SYSTEM\CurrentControlSet\Services\WinSock2\Parameters\Protocol_Catalog9 new registry key created
HKEY_USERS\%ID-USER-SID%_CLASSES\VirtualStore\MACHINE\SOFTWARE\MICROSOFT\Office\15.0\ClickToRun\REGISTRY\MACHINE\SYSTEM\CurrentControlSet\Services\WinSock2\Parameters\NameSpace_Catalog5 new registry key created
%PROGRAMFILES(X64)%\Microsoft Office 15\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE15\msosqm.exe.tmp new file created
%PROGRAMFILES(X64)%\Microsoft Office 15\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE15\msosqm.exe.dat file renamed
%PROGRAMFILES(X64)%\Microsoft Office 15\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE15\ACECORE.DLL.tmp new file created
%PROGRAMFILES(X64)%\Microsoft Office 15\root\vfs\ProgramFilesCommonX86\Microsoft Shared\OFFICE15\ACECORE.DLL.dat file renamed
HKEY_USERS\%ID-USER-SID%_CLASSES\VirtualStore\MACHINE\SOFTWARE\MICROSOFT\Office\15.0\ClickToRun\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\UserData\%ID-USER-SID%\Products\00005109110000000000000000F01FEC new registry key created
HKEY_USERS\%ID-USER-SID%_CLASSES\VirtualStore\MACHINE\SOFTWARE\MICROSOFT\Office\15.0\ClickToRun\REGISTRY\MACHINE\Software\Microsoft\Windows\CurrentVersion\Installer\UserData\%ID-USER-SID%\Products\00005109110000000000000000F01FEC\Usage new registry key created
%LOCALAPPDATA%\AMD\DxCache\2d4d65b4162801b608bfab0a31632294acd7a55500ba75a8.bin new file created
%LOCALAPPDATA%\D3DSCache\65b7adc24b3aea43 new catalogue created
%LOCALAPPDATA%\D3DSCache\65b7adc24b3aea43\52264C4C-172F-41B9-91B8-7F0C3B1E9021_VEN_1002&DEV_15D8&SUBSYS_1366&REV_C1.lock new file created
%LOCALAPPDATA%\D3DSCache\65b7adc24b3aea43\52264C4C-172F-41B9-91B8-7F0C3B1E9021_VEN_1002&DEV_15D8&SUBSYS_1366&REV_C1.idx new file created
%LOCALAPPDATA%\D3DSCache\65b7adc24b3aea43\52264C4C-172F-41B9-91B8-7F0C3B1E9021_VEN_1002&DEV_15D8&SUBSYS_1366&REV_C1.val new file created

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Firstrun.exe's virus check

76%

of antivirus scans don't detect any virus in it

22%

of antivirus scans detect it as a potentially unwanted program

2%

of antivirus scans detect a virus in it

Firstrun.exe user rating

74%

of users rate Firstrun.exe as a useful program

22%

of users find Firstrun.exe to be a potentially unwanted program

4%

of users find Firstrun.exe to be malicious or a scam