If VirtualBox stuck on Saving state, your machine is in the hung state. Kill the VM via the Command Prompt, disable Core ...
Preview can do more than just show you a file in macOS, as it is especially handy for annotating images and editing PDFs.
How-To Geek on MSN
Your SSD might be innocent: How unstable RAM and aggressive undervolts silently corrupt data
The silent data corruption problem that can destroy your files ...
Execution, integrity, and provenance determine PDF safety.
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