Damaged USB/Network cable If the cable used for data transfer is damaged or incompatible, you may encounter the semaphore timeout period has expired error 0x80070079. In that case, simply replacing the cable would fix the error.
Windows 10, like any other operating system, is likely to be rife with issues of its own aside from these bugs. Some of them reappear, others less frequently. Error 0x80070079 The semaphore timed out while trying to transfer files between an external device and Windows 10.
Written by Anand Hanse. De facto error occurs when transferring files over network: error 0x80070079, semaphore timed out. A semaphore is partly a variable. This error is undoubtedly caused by several reasons.
Not too long, maybe 2 or 3 sentences. What is “semaphore timeout expired” or 0x80070079? This issue mostly occurs on Windows when transferring files between alternate drives or local networks. Typically, a semaphore timeout error is an error popup when a large file transfer message appears.
The semaphore period timeout is obsolete. 01/09/2009 .12:26 .PM .
What is error 0x80070079 The semaphore timeout period has expired?
Summary: Error code 0x80070079: Semaphore timeout definitely occurs when trying to transfer these files from an external system or local network. Try moving or copying files from one hard drive to another. When accessing a portable drive. Make a backup of your current system.
How do you fix error 0x80070079 The semaphore timeout period has expired?
Methods to fix error 0x80070079 with semaphore timeout
- Replace the USB/network cable. The cable you are using may be weak.
- Use USB 3.0. If you are using USB 2.0, please change it to USB 3.0.
- Update your network drivers. You can update your network drivers to fix the issue.
- Reset main network:

Ermias is a tech writer with a passion for helping people solve Windows problems. He loves to write and share his knowledge with others in the hope that they can benefit from it. He’s been writing about technology and software since he was in college, and has been an avid Microsoft fan ever since he first used Windows 95.