Damaged registry files, malware, viruses, and corrupted data can result in Windows Defender Handle Error issues. These errors are often caused by improper maintenance of your system. If not fixed, this may lead to severe computer problems.
Windows Defender Handle Error 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 Windows Defender Handle Error repair tool SpeedyPC. It will fix the problems that can create these errors and prevent new ones from occurring.
Now you can try to use 3 tips below. Errors could also lead to computer crashes, freezing, or the infamous windows blue screen. Errors could also lead to computer crashes, freezing, or the infamous windows blue screen. This isn't helpful because it doest' give you a place to start for trouble shooting. This will also cause your PC slows down during startup times, opening up of new programs or files, surfing on the internet and blue screen for a long time. Then, click Run. The registry will become corrupt with errors and/or missing files.