Command Prompt Archives

Winsage

May 15, 2026

Zero-day exploit completely defeats default Windows 11 BitLocker protections

A zero-day exploit named YellowKey allows individuals with physical access to Windows 11 systems to bypass BitLocker encryption protections. Discovered by researcher Nightmare-Eclipse, this vulnerability enables unauthorized users to access encrypted drives quickly. The exploit involves transferring a custom FsTx folder to a USB drive, connecting it to a BitLocker-protected device, and entering recovery mode to gain command prompt access without needing a BitLocker recovery key. Esteemed researchers Kevin Beaumont and Will Dormann have confirmed the exploit's functionality, although the specific mechanism within the FsTx folder that enables the bypass is not fully understood.

Winsage

May 14, 2026

Dell SupportAssist is crashing some Windows 11 PCs, causing them to enter reboot loops. Here’s how to stop it.

Dell users on Windows 11 are experiencing frequent blue screens and reboot loops after updating the Dell SupportAssist Remediation software to version 5.5.16.0, released on April 30. This issue particularly affects models like the XPS 15 9530, with crashes occurring approximately every thirty minutes and a common error message being "CRITICALPROCESSDIED." The problem has been traced to the DellSupportAssistRemediationService.exe, which is pre-installed on many Dell systems and designed to manage diagnostics, driver updates, and recovery tools. Users are advised to uninstall or disable the software to restore normal functionality. Dell has acknowledged the issue and is working on a resolution. Temporary workarounds include disabling the service via Command Prompt or fully uninstalling the SupportAssist components through the Settings app. However, uninstalling may result in the loss of system repair points created by the service.

Winsage

May 2, 2026

“Xbox mode is easily the headline feature”: In May’s Windows 11 update, I walk through the 11 upgrades that change how we use the OS, and why some of them surprised me

Microsoft will begin rolling out the May 2026 Security Update for Windows 11 on May 12, 2026. Key features of this update include: 1. Xbox Mode: Transforms PCs into a console-like experience, prioritizing system resources for gaming and freeing up to 2GB of memory. 2. Voice Typing Improvements: Redesign of Voice Typing elements on the touch keyboard. 3. New Arabic 101 Legacy Keyboard Layout: Available for addition from the Region page in Settings. 4. Drop Tray Changes: Renamed from Drag Tray and can be disabled in Settings > System > Multitasking. 5. Taskbar AI Agents Support: Allows monitoring of AI agents directly from the Taskbar, starting with the Microsoft 365 Copilot app. 6. Debloat Policy with Dynamic List Support: Enables administrators to specify additional apps for removal beyond the default list. 7. Windows Driver Policy Update: Changes how the kernel manages trust for third-party drivers, eliminating default trust for cross-signed drivers. 8. Batch File Security Changes: Enhances security for batch files and Command Prompt scripts, with an option for a hardened processing mode. 9. Format FAT32 up to 2TB: The format command-line tool now supports formatting volumes up to 2TB using FAT32.

Winsage

April 23, 2026

Tested: Windows 11 setup screen now finally lets you skip forced updates, and go directly to the desktop

Microsoft has enhanced the Windows 11 setup process by introducing an "Update Later" toggle, allowing users to bypass forced updates during device setup. This feature enables users to continue with the setup while updates are checked in the background, granting them access to their desktop without interruption. Users can manage updates at their convenience once on the desktop. Microsoft is also considering removing the mandatory Microsoft account requirement for Windows 11 Home users and reducing upsells in the out-of-box experience (OOBE). Additionally, the company has introduced web-based Copilot into the OOBE, though its widespread deployment is not yet planned.

Winsage

April 16, 2026

FAT32 breaks free from its outdated limitation in latest Windows update

The FAT32 file system, historically limited to a 32GB partition size due to a design choice by Microsoft engineer Dave Plummer, can inherently support volumes up to 2TB with a 512-byte sector size and theoretically up to 16TB with 4KB sectors. While Windows maintained this 32GB limit, motherboard manufacturers had already developed firmware to utilize larger FAT32 drives. Tools like Rufus and GUIFormat were used to format high-capacity media, as Windows did not allow direct FAT32 formatting for drives larger than 32GB. However, with the introduction of Windows 11 Insider Preview Builds 26220.8165 and 26300.8170, users can now format large flash drives and external volumes as FAT32 directly from the Command Prompt without third-party software.

Tech Optimizer

April 15, 2026

Connecting .NET Lambda to Amazon Aurora PostgreSQL via RDS Proxy

Many organizations are modernizing legacy .NET applications while reducing database costs and enhancing scalability, particularly during migrations to AWS Lambda and transitions from SQL Server to Amazon Aurora PostgreSQL-Compatible Edition. The process involves connecting Lambda functions to Aurora PostgreSQL using Amazon RDS Proxy, with AWS Secrets Manager managing secure credential storage. The architecture includes a .NET Lambda function interfacing with Aurora PostgreSQL via RDS Proxy, which provides connection pooling to minimize database connection overhead. The solution requires a CloudFormation template to provision resources such as a VPC with private subnets, an Aurora PostgreSQL cluster, RDS Proxy, and Secrets Manager. The RDS Proxy is configured with parameters including PostgreSQL engine family, idle client connection timeout, and Secrets Manager secret. A Windows EC2 instance is provisioned, and access is facilitated through AWS Systems Manager Fleet Manager. The solution includes creating a sample table named "employee" in the database and a new .NET Lambda project that utilizes Npgsql for database connections. The Lambda function is deployed using the AWS CLI, and testing involves invoking the function and retrieving logs from Amazon CloudWatch. Finally, resources created during the process should be deleted to prevent ongoing charges.

Winsage

April 13, 2026

Windows 11 is finally removing the 32GB FAT32 capacity limit

Microsoft has released new test builds for Windows Insiders, specifically Dev Build 26300.8170 and Beta Build 26220.8165, which remove the 32GB limit on FAT32 formatting for external drives. Users can now format external drives up to 2TB using FAT32 through the Command Prompt. This change, which has been anticipated by users, is a shift from the long-standing restriction that required third-party applications or specialized commands for larger drives. The enhancement applies only to the Command Prompt, as the graphical interface remains unchanged, and the 4GB file size limit for individual files on FAT32 drives still applies. This feature is currently available only in preview versions for Windows Insiders, with a broader rollout planned for future standard Windows 11 updates.

Winsage

April 11, 2026

“We have discontinued SaRA”: Microsoft replaces its Windows 11 Recovery Assistant — here’s how to transition to Microsoft’s modern command-line replacement.

Microsoft has phased out the Support and Recovery Assistant (SaRA) utility with the March 2026 Security Update for Windows 11, replacing it with the new "Get Help" command-line tool. The SaRA was designed to troubleshoot and resolve common issues affecting Windows 11 and Microsoft 365 applications. Users are now encouraged to use the Get Help command-line tool, which offers enhanced functionality and security. To use the Get Help tool, users must download the files, extract them, and run specific commands in the Command Prompt. The tool addresses various issues, including Microsoft 365 activation challenges and Outlook profile errors.

Winsage

April 7, 2026

Disgruntled researcher drops “BlueHammer” Windows zero-day LPE exploit

A security researcher, known as "Nightmare-Eclipse," released proof-of-concept exploit code for a Windows zero-day vulnerability called "BlueHammer," which allows local privilege escalation (LPE). The exploit has been validated by another researcher, Will Dormann, who confirmed it can escalate privileges on Windows systems, allowing non-administrative users to gain SYSTEM-level access. The exploit's reliability varies across different Windows versions, with inconsistent success rates reported. Microsoft has not acknowledged the vulnerability or provided a patch, raising concerns about potential exploitation by threat actors. Users are advised to restrict local user access, monitor for suspicious activity, and enable advanced endpoint protection.

Winsage

April 7, 2026

How to Reset Folder Permissions in Windows 11: 5 Proven Methods That Actually Work

Folder permissions in Windows 11 control access to files, determining who can read, modify, or delete them. Common issues arise from drive or file migration, Windows updates, malware, or user errors. Symptoms include "Access Denied" messages and ownership displayed as "unknown." Methods to resolve folder permission issues include: 1. Security Tab: Reset permissions through the Security tab by modifying access levels and ensuring proper inheritance. 2. Take Ownership: Claim ownership of a folder if the current owner is no longer valid, then reset permissions. 3. Command Prompt: Use commands like PLACEHOLDERfa5c045a85bc6cf0 and PLACEHOLDER14a87b7576573f58 to reset permissions quickly and efficiently. 4. PowerShell: Utilize PowerShell for advanced permission resets, allowing for conditional logic. 5. Windows Reset: As a last resort, reset Windows to restore default permissions while keeping personal files. To prevent future issues, back up permissions before changes, understand NTFS vs. share permissions, and avoid altering system folders. If problems persist, ensure commands are run as an administrator, check ownership settings, and verify that Group Policy or sync tools are not overriding changes.