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Apple has offered such an option on its computers for many years. The automation of OS recovery and firmware updates is a big improvement in the PC ecosystem over the traditional process of users having to manually search for BIOS updates or recovery tools on the manufacturers' support sites, then flash them to USB drives or optical discs and boot from them. If the connection is successful, it downloads the SupportAssist recovery image, loads it into RAM and starts it. Specifically, the feature uses Google's Public DNS server 8.8.8.8 to find the IP address for the domain and then connects to the server over HTTPS.
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In those cases, BIOSConnect allows users to start the recovery process directly from the internet. However, there might be situations where the service partition itself was deleted, was corrupted, or is absent because the entire hard drive was replaced.
#Dell os recovery tool location install
Users can also install UEFI updates through SupportAssist, Dell's support software that's installed on its Windows computers by default and which also monitors device health, delivers OS driver updates for various components and helps users troubleshoot issues.ĭell computers also ship with a hidden service partition on their hard drives that can be used to launch SupportAssist OS Recovery from the boot menu if the installed operating system is corrupted and can no longer start. What is BIOSConnect?īIOSConnect is a feature in the low-level firmware, the Unified Extensible Firmware Interface (UEFI), of Dell computers that allows users to perform recovery operations and firmware updates over the internet from outside the operating system.
#Dell os recovery tool location update
ĭell has started releasing BIOS/UEFI updates for the affected models and advises everyone to deploy those updates using alternative firmware update methods, not the impacted feature called BIOSConnect. The vulnerabilities were discovered by researchers from Eclypsium, a company that specializes in hardware and firmware security, and will be fully disclosed during a presentation in August at the DEF CON security conference.
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The over-the-internet firmware update and OS recovery feature present in 128 Dell computer models suffers from certificate validation and other flaws that could allow man-in-the-middle (MitM) attackers to compromise the devices at the firmware level and deploy malicious implants.