Winsage
July 11, 2026
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.
