1. Not installed any, only Windows Defender always On.
3. sfc / scanow
Microsoft Windows [Version 10.0.17134.407]
(c) 2018 Microsoft Corporation. All rights reserved.
C:\Windows\system32>sfc /scannow
Beginning system scan. This process will take some time.
Beginning verification phase of system scan.
Verification 100% complete.
Windows Resource Protection did not find any integrity violations.
C:\Windows\system32>
4. dism /online /cleanup-image /restorehealth
Microsoft Windows [Version 10.0.17134.407]
(c) 2018 Microsoft Corporation. All rights reserved.
C:\Windows\system32>dism /online /cleanup-image /restorehealth
Deployment Image Servicing and Management tool
Version: 10.0.17134.1
Image Version: 10.0.17134.407
[==========================100.0%==========================] The restore operation completed successfully.
The operation completed successfully.
C:\Windows\system32>cmdc
**5.**chkdsk /scan
Microsoft Windows [Version 10.0.17134.407]
(c) 2018 Microsoft Corporation. All rights reserved.
C:\Windows\system32>chkdsk /scan
The type of the file system is NTFS.
Stage 1: Examining basic file system structure ...
299520 file records processed.
File verification completed.
7799 large file records processed.
0 bad file records processed.
Stage 2: Examining file name linkage ...
652 reparse records processed.
403746 index entries processed.
Index verification completed.
0 unindexed files scanned.
0 unindexed files recovered to lost and found.
652 reparse records processed.
Stage 3: Examining security descriptors ...
Security descriptor verification completed.
52114 data files processed.
CHKDSK is verifying Usn Journal...
41348048 USN bytes processed.
Usn Journal verification completed.
Windows has scanned the file system and found no problems.
No further action is required.
468219903 KB total disk space.
100524568 KB in 239691 files.
145792 KB in 52115 indexes.
0 KB in bad sectors.
423283 KB in use by the system.
65536 KB occupied by the log file.
367126260 KB available on disk.
4096 bytes in each allocation unit.
117054975 total allocation units on disk.
91781565 allocation units available on disk.
C:\Windows\system32>
C:\Windows\system32>