title: SQL Server Backup\Restore - Cannot access the specified path or file
body: <p>I've recently changed the default <code>BackupDirectory</code> for a SQL Server 2008 R2 instane in the registry from <code>I:\</code> to <code>K:\</code> and since then whenever I try to backup or restore using SSMS I'll get an error  </p>
  
  <blockquote>
    <p>Cannot access the specified path or file</p>
  </blockquote>
  
  <p>when I browse for the path. </p>
  
  <p><img src="https://i.stack.imgur.com/JUgVQ.png" alt="Error from SSMS"> </p>
  
  <p>It happens to the root and all folders in <code>K:\</code>. If I key in <code>I:\</code> in the path and browse, there's no such issue. I've replicated the permission on <code>I:\</code> and later added the service account for SQL and <code>MSSQLSERVER</code> to <code>K:\</code> with Full Access. I've even tried adding <code>Everyone</code> with Full Access and it still shows the same error. I've googled around and find a lot of similar questions but no working solution for me. I've also tested <code>master.sys.xp_dirtree</code> on <code>K:\</code> and no error. I've even tried <code>procmon.exe</code> but no indication of what went wrong <img src="https://i.stack.imgur.com/grQUQ.png" alt="enter image description here"></p>
  
  <p><code>K:\</code> is the newly created pool in our SAN allocated for backups only. The SQL Server is part of a Windows 2008 R2 Failover Cluster. Both <code>I:\</code> and <code>K:\</code> is configured as SQL Server's cluster resources.</p>
  
  <p>Fyi, I login to SSMS using a SQL Server account, since my machine is not part of the domain. But it was never an issue with <code>I:\</code> to begin with.</p>
  
  <p>EDIT: There's no error if I backup/restore with T-SQL, meaning the read/write permission for SQL Server for <code>K:\</code> is correct.</p>