This is basically a java error that occurs when the installation is not updating. This error comes up with an error message saying the windows installer is not accessible. There can be a few possible triggers to QuickBooks error code 1601, which we will be discussing later on. Getting rid of this error becomes easy by carrying out a few simple methods.

Possible Causes of QuickBooks Error 1601
The major reasons behind the QuickBooks Install Error 1601 are discussed below:-

Generally error codes are on top that generated once in the windows. If get infected with a widespread attack to related to the software package.
The QB issue is going to take place once if the QB downloading file is faulty.
If the Microsoft Windows installer gets corrupted.
When there is no permission to put in the QuickBooks software system or a Windows Operating System.
QuickBooks not installed correctly or damaged QB installer
It might be all programs area unit infected by malware & viruses.