Application Isolation feature in Windows 10
Application Isolation is a printing feature in Windows 10/8 that isolates applications from print drivers so that applications do not crash if a print driver crashes, making the application more stable. This feature extends an existing Windows feature (SplWoW64) to cover all printing scenarios in Windows Server and Windows 10/8.
Disable Application Isolation
If your printer driver does not have full functionality, you may change the setting to disable application isolation. To do so, open Group Policy Editor and navigate to the following setting: Double-click on Isolate print drivers from applications and then click on Enabled, and the Apply/OK to disable Application Isolation in Windows 8. If you enable or do not configure this policy setting, then applications that are configured to support driver isolation will be isolated. If you disable this policy setting, then print drivers will be loaded within all associated application processes. This policy is supported on Windows 10, Windows 8, Windows Server 2012 or later.