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  1. Any way to get SR6.1r4 to work on USB drives? - forums.grc.com

    Oct 17, 2024 · To obtain direct, low-level access to a system's mass storage drives, SpinRite runs under a GRC-customized version of FreeDOS which has been modified to add compatibility …

  2. Unable to access ShieldsUp port scanner | GRC Public Forums

    Nov 11, 2024 · To obtain direct, low-level access to a system's mass storage drives, SpinRite runs under a GRC-customized version of FreeDOS which has been modified to add …

  3. Help with ShieldsUp - Ports | GRC Public Forums

    Nov 17, 2024 · GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a …

  4. Sequential processing order of drives to be worked on

    Oct 17, 2024 · To obtain direct, low-level access to a system's mass storage drives, SpinRite runs under a GRC-customized version of FreeDOS which has been modified to add compatibility …

  5. I created a SecurityNow APP! | GRC Public Forums

    Nov 13, 2024 · I’m a huge fan of the Security Now podcast and wanted to make it easier to revisit past episodes while waiting for new ones. So, I created an Android app, the Security Now …

  6. ValiDrive confirmed false capacity, now I want clean and use the …

    Sep 30, 2024 · GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a …

  7. DNS Benchmark - GRC Public Forums

    Dec 11, 2025 · GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a …

  8. DNS Benchmark, Which DNS Server is best for me ? | GRC Public …

    Aug 24, 2025 · I also read some information on how to use the program from www.grc.com. I also read some of the DNS Benchmark Introduction and Conclusions of each test. I'm still having …

  9. GRC Public Forums

    Dec 8, 2025 · GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a …

  10. UEFI Booting - GRC Public Forums

    Sep 24, 2020 · GRC's “BootAble” freeware allows anyone to easily create BIOS-bootable media in order to workout and confirm the details of getting a machine to boot FreeDOS through a …