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  1. Beginning work on v2 of the DNS Benchmark | GRC Public Forums

    Nov 3, 2024 · Hey Everyone! With the conclusion of the work on GRC's mailing facility and SpinRite's documentation being finalized with the creation of the planned video walkthrough / demo... work on …

  2. How To: Run SpinRite on a UEFI-only machine (Part 1 of 5) | GRC Public ...

    Apr 22, 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 BIOS. Once the …

  3. DNS Benchmark, Which DNS Server is best for me ? | GRC Public Forums

    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 trouble …

  4. 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 compatibility with all …

  5. Spinrite - Cannot see my USB drive | GRC Public Forums

    Jul 14, 2023 · I boot to Spinrite 6 with a USB stick, but for some reason Spinrite cannot see the drive I want to recover, which is a USB hard drive. Spinrite only sees...

  6. Any chances of ShieldsUp! to support IPv6? | GRC Public Forums

    Aug 3, 2021 · 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 with all file …

  7. How To: Run SpinRite on a UEFI-only machine (Part ... - GRC Public …

    Apr 22, 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 BIOS. Once the …

  8. Unable to access ShieldsUP! port scanner | GRC Public Forums

    Aug 19, 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 with all …

  9. Bootable SpinRite USB Fails - GRC Public Forums

    Apr 10, 2024 · I created a SanDisk Ultra USB 3.0 SpinRite bootable disk using the SpinRite 6.1 (3) program. When plugged into either my USB 3.0 or USB 2.0 or Type C port, and selected in the UEFI …

  10. 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 BIOS. Once the …