Dell has confirmed that its SupportAssist software is causing blue screen crashes in some Windows systems following a wave of user reports about random reboots affecting Dell devices since Friday.
SupportAssist is a software suite developed by Dell that comes pre-installed on most Dell computers running Windows 10 or Windows 11.
A Dell representative told customers on the company’s official website on Wednesday that the latest SupportAssist Remediation service update is what triggers the 0xEF_DellSupportAss_BUGCHECK_CRITICAL_PROCESS errors and advised them to remove the service to resolve the crash.
“Dell Engineering is aware of the BSOD issue and is working on a solution. As many have noted, version 5.5.16.0 of the Dell SupportAssist Remediation service or the Alienware SupportAssist Remediation service can cause BSODs,” they said.
“As a workaround, many users report success by disabling the Dell SupportAssist Remediation service or simply completely uninstalling the SA application,” a Dell representative added in a separate tweet.
To uninstall the buggy Dell SupportAssist Remediation version, open Windows Settings, go to Apps > Installed apps, select the “Alienware SupportAssist Remediation” entry from the list, and click Uninstall.
However, it is important to note that any system restore points created by Dell OS SupportAssist Recovery may not be available after the faulty service is removed from the affected PCs.
Dell also advises those who still experience blue screen crashes on their Windows systems after uninstalling the utility to contact support for further assistance.
It’s not the first time Dell software updates have caused major problems for customers in recent years. For example, the company also warned in April 2025 that customers may experience blue screens after upgrading to SupportAssist for Home PCs v4.6.2/v4.6.3 on Latitude and Vostro series laptops.
Users also reported in December 2021 that recently released Dell BIOS updates were preventing many computer and desktop models from booting, including Dell Latitude laptops (series 5320 and 5520), Dell Inspiron 5680, and the Alienware Aurora R8 desktop.
According to affected customers, even though the affected systems were powered on, they would quickly show a green screen and then shut down again. Although Dell did not provide comment when reached by BleepingComputer at the time, affected Dell users shared detailed procedures for downgrading the BIOS to older versions using the SupportAssist OS Recovery software.
Security researchers also discovered a critical security vulnerability in the BIOSConnect feature of Dell SupportAssist that could allow remote attackers to execute code within the BIOS of affected devices.
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