Problem description one:
I installed the xftp software and found that it was unavailable. I directly deleted the installation file. I found that it was not completely deleted before using the normal uninstallation. At this time, it was reported that the DLL function nsutil2.NsGetHomePageLink could not be found. Unable to uninstall.
Solution (Failed to force uninstallation using security software):
Use the software windows install clean up (click to enter the download path) to achieve deletion.
Removal method: After the software is installed, it will not be reflected on the desktop. In the win10 system, enter the "recently added" to see the program that has just been installed, then go in and select the program, click remove, and click exit when finished. Be careful not to click delete all.
("Recently added" position: click the windows button, the top is the one)
Problem description two:
After the above problem is solved, the installation software can be opened, but another problem occurred during installation: 1605 This operation is only valid for the currently installed product. The reason is that there are still residues in the software uninstallation.
Solution:
Find the directory: C:\Program Files (x86)\InstallShield Installation Information C:\Program Files (x86)\InstallShield Installation Information
There will be some folders in this directory, one of which is the software residue you just deleted, open the file The folder will find which software is deleted, and then delete this folder (the operation here is the same as deleting the registry).