Ho fatto chkdsk /f questo è il risultato:
Checking file system on C:
The type of the file system is NTFS.
Volume label is Windows.
A disk check has been scheduled.
Windows will now check the disk.
Stage 1: Examining basic file system structure ...
2596352 file records processed.
File verification completed.
Phase duration (File record verification): 36.20 seconds.
13738 large file records processed.
Phase duration (Orphan file record recovery): 0.00 milliseconds.
0 bad file records processed.
Phase duration (Bad file record checking): 2.03 milliseconds.
Stage 2: Examining file name linkage ...
50034 reparse records processed.
2782658 index entries processed.
Index verification completed.
Phase duration (Index verification): 2.15 minutes.
0 unindexed files scanned.
Phase duration (Orphan reconnection): 6.88 seconds.
0 unindexed files recovered to lost and found.
Phase duration (Orphan recovery to lost and found): 7.93 seconds.
50034 reparse records processed.
Phase duration (Reparse point and Object ID verification): 117.52 milliseconds.
Stage 3: Examining security descriptors ...
Cleaning up 4994 unused index entries from index $SII of file 0x9.
Cleaning up 4994 unused index entries from index $SDH of file 0x9.
Cleaning up 4994 unused security descriptors.
Security descriptor verification completed.
Phase duration (Security descriptor verification): 175.31 milliseconds.
93154 data files processed.
Phase duration (Data attribute verification): 2.25 milliseconds.
CHKDSK is verifying Usn Journal...
40331584 USN bytes processed.
Usn Journal verification completed.
Phase duration (USN journal verification): 373.87 milliseconds.
Windows has scanned the file system and found no problems.
No further action is required.
929310719 KB total disk space.
53131300 KB in 241579 files.
170876 KB in 93155 indexes.
0 KB in bad sectors.
2742495 KB in use by the system.
65536 KB occupied by the log file.
873266048 KB available on disk.
4096 bytes in each allocation unit.
232327679 total allocation units on disk.
218316512 allocation units available on disk.
Total duration: 3.02 minutes (181694 ms).
Internal Info:
00 9e 27 00 6a 1b 05 00 9b 41 09 00 00 00 00 00 ..'.j....A......
87 00 00 00 eb c2 00 00 00 00 00 00 00 00 00 00 ................