Hi Marco,
I faced a similar problem when launching PI 7.5 with Java 1.8.0_92. I didn't face this problem with Java 1.8.0_77 on the same PI system. I believe it is related to security profile which stored within Java cache.
Below is the workaround which I'm using so far:
1. Delete cache files (all folders) under directory C:\Users\<username>\AppData\LocalLow\Sun\Java\Deployment\Cache\
2. Access Java Control Panel (In Windows environment would be Control Panel -> Programs -> Java), under General tab -> Temporary Internet Files -> Settings -> uncheck 'Keep temporary files on my computer.'
After above steps, ESR and IB would be able to launch as usual.
Cheers
Jun Yan