Hi, I have a Windows server 2008 R2 in production environment and a SQL server 2008 R2 there. Windows server had a windows update last weekend (KB4457008 and KB4462923) and a server reboot following that. After the reboot, SQL service was not starting
in the server with an event viewer error, Unable to access MSSQL\ERRORLOG file. I found ERRORLOG file in MSSQL folder has changed to Read-Only state and hence SQL Server Service was not starting. It started successfully by creating a new ERRORLOG file
once we renamed the existing ERRORLOG file to some other name. Can anyone help me to understand what can be the reason behind the enabling of Read-Only attribute of ERRORLOG file, where all other files were not facing any issue. Same windows update has been
applied to lower environment as well and SQL started there with no issues.
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