The Main Reason for this is The Antivirus would be locking the file for further writing.
Either Disable the AV or exclude them from AV Scanning.
Hope this makes clear 
Cheers!
Omkar
↧
Re: EHP7 UPGRADE ISSUE Cannot append to 'D:\usr\sap\SUM\abap\log\STORE2BUFFER.ECO'
↧