Hello, I have had the same issue, here is error
Started processing. Existing boot image BGD000D7 will be used. Creating MDT files packag Error while importing Microsoft Deployment Toolkit Task Sequence.
System.UnauthorizedAccessException: Access to the path is denied. at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) at System.IO.File.Move(String sourceFileName, String destFileName) at Microsoft.BDD.Core.DirectoryUtility.CopyFile(DEInfo sourceFile, DEInfo destFile, String destFullName) at Microsoft.BDD.Core.DirectoryUtility.CopyDirectory(String theSource, String theDest) at Microsoft.BDD.Core.DirectoryUtility.CopyDirectory(String theSource, String theDest) at Microsoft.BDD.Core.DirectoryUtility.BeginCopy() at Microsoft.BDD.Wizards.SCCM_ImportTaskSequenceTask.DoWork(SmsPageData smspageData, Dictionary`2 data)
Thanks to deployzilla I have renamed autorun.inf to autorun.inf.old and creating TS and Toolkit package went smoothly. I have also realized that I was unable to rename back autorun.inf with UNC path, but when I have tried locally it works.
I really believe our antivirus solution has blocked copying autorun.inf with UNC and AV is guilty for error message.
Regards from Serbia.