QuickBooks Error 61686 occurs when Windows Installer-related documents get mistakenly deleted.
The other causes are enumerated as follows:
The Windows Installer Programming breaks down.
In case there is any misconfiguration in the Windows Registry. This issue can be because of a recent change in Windows Installer Programming.
When an infection occurs in the Windows Framework files. These System infections can be due to a virus or malware.
The user is working on an outdated version of the Microsoft .NET Framework.
The installation of Microsoft .NET Framework on Windows is incomplete.
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