Diagnostic details: - The last unmovable file appears to be: \$Mft::$DATA

I tried to shrink my c drive but i noticed that there's a point i tried to fix it but during the shrink phase i got this defrag Diagnostic details:

• The last unmovable file appears to be: $Mft::$DATA
• The last cluster of the file is: 0x525a8db
• Shrink potential target (LCN address): 0xb8f12c
• The NTFS file flags are: -S--D
• Shrink phase: any solutions for this?thanks in advance,