You can follow the steps below to remove Dynamic Web TWAIN:

1. Remove Dynamic Web TWAIN class from IE->Tools->Manage Add-ons.

NOTE: Before deleting any DLL files mentioned in the following steps, please run CMD as administrator and use the command regsvr32 -u "the path of the DLL file" to unregister it first.

2. Delete DynamicWebTwainCtrlTrial.dll (or DynamicWebTwainCtrl) and DynamlicWebTwainActiveX.lic under "C:\WINDOWS\system32" or "C:\Windows\SysWOW64"

3. Remove DynamicWebTwainTrialTrial.dll (or DynamicWebTwainCtrl) and DynamicWebTwainCtrlTrial.inf under the following folders if any.

- "C:\WINDOWS\Downloaded Program Files"

- "C:\Users\{username}\AppData\Local\Microsoft\Internet Explorer\Downloaded Program Files

- "C:\Users\{username}\AppData\Local\VirtualStore\Windows\System32" or "C:\Users\{username}\AppData\Local\VirtualStore\Windows\SysWOW64"