chkdsk / disk error

Živ, sem hotel z OO defrag čekirat C: disk, pa je javil en error, se ne spomnim več kter
pol sem zagnal chkdsk in mi napiše tole

WARNING! F parameter not specified.
Running CHKDSK in read-only mode.

CHKDSK is verifying files (stage 1 of 3)...
File verification completed.
CHKDSK is verifying indexes (stage 2 of 3)...
Index verification completed.
CHKDSK is recovering lost files.
CHKDSK is verifying security descriptors (stage 3 of 3)...
Security descriptor verification completed.
CHKDSK discovered free space marked as allocated in the
master file table (MFT) bitmap.
Correcting errors in the Volume Bitmap.
Windows found problems with the file system.
Run CHKDSK with the /F (fix) option to correct these.

293025568 KB total disk space.
129937552 KB in 164709 files.
71064 KB in 16837 indexes.
0 KB in bad sectors.
331364 KB in use by the system.
65536 KB occupied by the log file.
162685588 KB available on disk.

4096 bytes in each allocation unit.
73256392 total allocation units on disk.
40671397 allocation units available on disk.

Zdej me pa zanima, al je ok da poženem v fix načinu?

tnx