Firstly,you need to determine what type of Foxit PhantomPDF installation package you have installed(.exe or .msi)?Please navigate to your Foxit PhantomPDF's main installation folder,somewhere like：C:\Program Files (x86)\Foxit Software\Foxit PhantomPDF
Right click on the "uninstall" file in the installation folder and select Properties option in the pop-up context menu to open the "Uninstall Properties" dialog box,click on Shortcut tab there,then please find the content in the target field.
If the target content is something like the following:
"C:\ProgramData\Package Cache\{8c0e3d08-80f4-43e3-a5d7-48cf95c393d5}\GA_Phantom_En_BIZ_Online_Full_v9.7.2.29539.exe" /uninstall
It means that the one you have installed is .exe installer package of Foxit PhantomPDF.
If the target content is something like the followings:
C:\Windows\System32\msiexec.exe /x {3EACD346-8A39-11EA-B9CD-54BF64A63C26}
It means that the one you have installed is .msi installer package of Foxit PhantomPDF.
Following are instructions about how to use command line to silently uninstall Foxit PhantomPDF with msi installer format installed:
1. For windows 10 and windows 8, Right click on Windows Start 
, choose Command Prompt (Admin),In some operating systems,when you right right-click on Windows Start icon,the pop-up menu will show Windows Powershell and Windows Powershell (Admin) options, please click on Windows Powershell (Admin).
For windows 7, please click Start menu, type cmd in search box, right click on search result and choose Run as Administrator.
2. In the command prompt, input
"Foxit PhantomPDF installation folder path\Uninstall.lnk" /quiet
or
msiexec.exe /x "path\setup.msi" /quiet
or
msiexec.exe /x {Foxit PhantomPDF GUID Value} /quiet
3.Press Enter to start the uninstall process.
Note:If you also want to remove registry and user data when performing silent uninstallation,please add 'Clean' parameter in commandline,input
"Foxit PhantomPDF installation folder path\Uninstall.lnk" /quiet CLEAN="1"
or
msiexec.exe /x "Foxit PhantomPDF.msi" /quiet CLEAN="1"
or
Msiexec.exe /x {Foxit PhantomPDF GUID Value} /quiet CLEAN="1"
Example
I want to uninstall the installed Foxit PhantomPDF 9.1 application(.msi installer) which is installed under
"C:\Program Files (x86)\Foxit Software\Foxit PhantomPDF" this folder and has its original setup file called "FoxitPhantomPDF91_enu_Setup.msi"stored on my E:\ drive. On the command line, I will input
"C:\Program Files (x86)\Foxit Software\Foxit PhantomPDF\Uninstall.lnk" /quiet
or
misexec.exe /x "E:\FoxitPhantomPDF91_enu_Setup.msi" /quiet
If I don’t use one of the above command lines, I also could choose to input
Msiexec.exe /x {FB7D593A-4279-11E8-AD22-000C296BF29B} /quiet
To check the GUID value of your installed Foxit PhantomPDF program in windows, you could use one of the following two ways:
Check from “Uninstall Properties” window:
Open the install directory for Foxit PhantomPDF, somewhere like (C:\Program Files (x86)\Foxit Software\Foxit PhantomPDF），right click on the “Uninstall” file in this folder, select “Properties” option in the pop-up context menu to open “Uninstall Properties” window. The GUID value is listed in the target field. In the following figure, I find the GUID value insides in the curly brackets.
Check from registry: Open Registry Editor:
Go to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Foxit Software\Foxit PhantomPDF.
GUID string value is listed on the right panel of registry editor.
Note: If you don’t have its original .msi setup file stored on your computer anymore, you could directly use one the following commandlines to uninstall:
"Foxit PhantomPDF installation folder path\Uninstall.lnk" /quiet
or
“Msiexec.exe /x {Foxit PhantomPDF GUID Value}”
If you still need to download the original installer package, please download the corresponding installation package according to the version of Foxit PhantomPDF you have installed from Foxit download center or contact support for getting the download link.
Following are instructions about how to use command line to silently uninstall Foxit PhantomPDF with .exe installer format installed:
1. For windows 10 and windows 8, Right click on Windows Start , choose Command Prompt (Admin),In some operating systems,when you right right-click on Windows Start icon,the pop-up menu will show Windows Powershell and Windows Powershell (Admin) options, please click on Windows Powershell (Admin).
For windows 7, please click Start menu, type cmd in search box, right click on search result and choose Run as Administrator.
2. In the command prompt, input
"Foxit PhantomPDF installation folder path\Uninstall.lnk" /quiet
or
"path\setup.exe" /uninstall /quiet
or
"C:\ProgramData\Package Cache\{Foxit PhantomPDF GUID Value} \setup.exe" /uninstall /quiet
3.Press Enter to start the uninstall process.
Note:If you also want to remove registry and user data when performing silent uninstallation,please add 'Clean' parameter in commandline,input
"Foxit PhantomPDF installation folder path\Uninstall.lnk" /quiet clean="1"
or
"path\setup.exe" /uninstall /quiet clean="1"
or
"C:\ProgramData\Package Cache\ {Foxit PhantomPDF GUID Value} \setup.exe" /uninstall /quiet clean="1"
Example
I want to uninstall the installed Foxit PhantomPDF 9.7.2 application (.exe installer) which is installed under
"C:\Program Files (x86)\Foxit Software\Foxit PhantomPDF" this folder and has its original setup file called "GA_Phantom_AllLang_BIZ_Online_Full_v9.7.2.29539.exe"stored on my E:\ drive. On the command line, I will input
"C:\Program Files (x86)\Foxit Software\Foxit PhantomPDF\Uninstall.lnk" /quiet
or
"E:\GA_Phantom_AllLang_BIZ_Online_Full_v9.7.2.29539.exe" /uninstall /quiet
If I don’t use one of the above command lines, I also could choose to input
"C:\ProgramData\Package Cache\{ae35922d-92ba-420d-a50f-b3edbd56ec29}\GA_Phantom_AllLang_BIZ_Online_Full_v9.7.2.29539.exe" /uninstall /quiet
To check the GUID value and the installer package file name of your installed Foxit PhantomPDF program in windows, you could use one of the following two ways:
Check from “Uninstall Properties” window:
Open the install directory for Foxit PhantomPDF, somewhere like (C:\Program Files (x86)\Foxit Software\Foxit PhantomPDF），right click on the “Uninstall” file in this folder, select “Properties” option in the pop-up context menu to open “Uninstall Properties” window. The GUID value and the installer package file name are listed in the target field. In the following figure,I find the GUID value insides in the curly brackets and installer package file name is next to the GUID value.
You should also find that the value of the Target is actually the Foxit PhantomPDF uninstall commandline itself ,you just need to add /quiet at the end of the commandline if you want to uninstall it in silent. For example,the value of the Target is:
"C:\ProgramData\Package Cache\{8c0e3d08-80f4-43e3-a5d7-48cf95c393d5}\GA_Phantom_En_BIZ_Online_Full_v9.7.2.29539.exe" /uninstall
Then the silently uninstall commandline should be:
"C:\ProgramData\Package Cache\{8c0e3d08-80f4-43e3-a5d7-48cf95c393d5}\GA_Phantom_En_BIZ_Online_Full_v9.7.2.29539.exe" /uninstall /quiet
Check from registry: Open Registry Editor:
Go to HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Foxit Software\Foxit PhantomPDF.
GUID string value is listed on the right panel of registry editor.
then go to HKEY_LOCAL_MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\"GUID value".
Installer package file name is listed in the value of QuietUninstallString string on the right panel of registry editor.
In addition,you will find that the value of the QuietUninstallString is actually the silent uninstall commandline itself for Foxit PhantomPDF.For example,the value of the QuietUninstallString is:
"C:\ProgramData\Package Cache\{8c0e3d08-80f4-43e3-a5d7-48cf95c393d5}\GA_Phantom_En_BIZ_Online_Full_v9.7.2.29539.exe" /uninstall /quiet
then the sliently uninstall command line should be:
"C:\ProgramData\Package Cache\{8c0e3d08-80f4-43e3-a5d7-48cf95c393d5}\GA_Phantom_En_BIZ_Online_Full_v9.7.2.29539.exe" /uninstall /quiet
Note:If you don’t have its original .exe setup file stored on your computer anymore, you could directly use one the following commandlines to uninstall:
"Foxit PhantomPDF installation folder path\Uninstall.lnk" /quiet
or
"C:\ProgramData\Package Cache\{Foxit PhantomPDF GUID Value} \setup.exe" /uninstall /quiet
If you still need to download the original installer package, please download the corresponding installation package according to the version of Foxit PhantomPDF you have installed from Foxit download center or contact support for getting the download link.
