Cannot create snapshots The semaphore timeout period has expired. 0x80070079 Posted on by Webmaster IT Support Forum › Forums › Backup and Restore › StorageCraft › ShadowProtect Server › Troubleshooting › Cannot create snapshots The semaphore timeout period has expired. 0x80070079 Tagged: 0x80070079, VSS This topic has 0 replies, 1 voice, and was last updated 6 years, 8 months ago by Webmaster. Viewing 0 reply threads Author Posts January 30, 2017 at 10:19 am #2049 WebmasterKeymaster When trying to backup using ShadowProtect Server, I get this error: Service 501 Cannot create snapshots The semaphore timeout period has expired. 0x80070079 I believe that this is due to a VSS Writer issue. To fix this, I will first try restarting the faulting VSS Writer service, failing that I will restart the server. Author Posts Viewing 0 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In