Cross Device Service Archives

Winsage

July 11, 2026

This Windows feature has been eating users’ RAM for years, Microsoft still hasn’t fixed it

Memory leaks have been reported with the Phone Link feature in Windows 11, specifically the Cross Device Service, which is consuming excessive amounts of RAM. Users have noted that this service can use between 15 to 30GB of RAM, leading to significant system slowdowns and reduced internet speeds. Complaints about this issue have been ongoing since early 2023, with users often needing to manually intervene via Task Manager to restore system performance. The Cross Device Service is intended to facilitate features like clipboard sharing and notification syncing but appears to malfunction and enter a loop that increases memory usage. Microsoft has not officially acknowledged the problem, and while generic troubleshooting steps have been suggested, they may not resolve the issue for all users. Disabling the Phone Link feature has been proposed as a potential solution to mitigate memory consumption.

Winsage

March 11, 2025

Microsoft March 2025 Patch Tuesday fixes 7 zero-days, 57 flaws

Microsoft released security updates on March 2025 Patch Tuesday, addressing 57 vulnerabilities, including six classified as critical related to remote code execution. The vulnerabilities are categorized as follows: 23 Elevation of Privilege, 3 Security Feature Bypass, 23 Remote Code Execution, 4 Information Disclosure, 1 Denial of Service, and 3 Spoofing. The updates specifically address six actively exploited zero-day vulnerabilities and one publicly disclosed zero-day vulnerability. The zero-day vulnerabilities include: 1. CVE-2025-24983 - Elevation of Privilege in Windows Win32 Kernel Subsystem. 2. CVE-2025-24984 - Information Disclosure in Windows NTFS. 3. CVE-2025-24985 - Remote Code Execution in Windows Fast FAT File System Driver. 4. CVE-2025-24991 - Information Disclosure in Windows NTFS. 5. CVE-2025-24993 - Remote Code Execution in Windows NTFS. 6. CVE-2025-26633 - Security Feature Bypass in Microsoft Management Console. The publicly disclosed zero-day is: - CVE-2025-26630 - Remote Code Execution in Microsoft Access. A comprehensive list of resolved vulnerabilities includes various CVE IDs and their respective titles and severities, with several vulnerabilities affecting Microsoft Office products, Windows components, and Azure services.

Winsage

June 18, 2024

High CPU Usage Strikes Windows 11 with New Phone Link App

- Windows 11 Insider Preview Phone Link app is facing a high CPU usage bug, caused by the Cross Device Service. - Microsoft engineers have identified the Cross Device Service as the root cause of the problem. - A temporary workaround is available by disabling the Cross Device Service. - The delay in providing a permanent solution has caused concerns among Windows Insider community. - With Windows 10 support ending, a well-functioning Phone Link app is crucial for a seamless transition to Windows 11. - Users may need to explore alternative methods for file sharing until the Phone Link app is fully functional again.