Damaged registry files, malware, viruses, and corrupted data can result in Error 1603 Zonealarm issues. These errors are often caused by improper maintenance of your system. If not fixed, this may lead to severe computer problems.
Error 1603 Zonealarm error symptoms can include program lock-ups, slow PC performance, system freezes, startup and shut down problems, installation errors, and hardware failure.
Fixing the Problem
To ensure your PC is error free, it is highly recommended that you download and run the Error 1603 Zonealarm repair tool SpeedyPC. It will fix the problems that can create these errors and prevent new ones from occurring.
3. And the DSOD will pop up in your monitor of PC. You are surfing on the internet and your screen suddenly disappears and a blue screen error appears, which indicates a lot of problems like stop error, insufficient space, booting, slow system etc will take place. Those of us using Windows have probably had a few run-ins with various types of computer error messages.