CHKDSK shorter if disk not full?

Hello, i got a new disk and going to fullfill it with my backups. Usually i do a test right out of the box but this time i just thought it's better to do it AFTER the copy since it's going to be a long one and could potentially (normally not) do some change and create/reveal bad sectors. Was just wondering in case the test turns out bad and i need to do a CHKDSK, will it be much longer if disk if fullfilled (but not necessarily 100% FULL)?

The "My Computer" section did not yet display drive information:

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It's generally best to run chkdsk switches overnight.
The larger the drive, the deeper the check, the more problems found, the less the free space, etc. the longer the run time.

The most thorough the testing will be with these switches: Chkdsk /b /v

Open administrative command prompt and type or copy and paste:
chkdsk /b /v
This may take hours to run so plan to run overnight.
Run on all drives using the syntax: chkdsk /b /v C: or chkdsk /b /v D: changing the drive letter to the applicable drive.

C:\Windows\system32>chkdsk /b /v
The type of the file system is NTFS.
Cannot lock current drive.

Chkdsk cannot run because the volume is in use by another
process. Would you like to schedule this volume to be
checked the next time the system restarts? (Y/N)

Type: Y
reboot


Use the information in this link to find the chkdsk report in the event viewer.
Copy and paste into notepad > save to desktop > post into the thread using one drive or drop box share link:
Read Chkdsk Log in Event Viewer in Windows 10 Windows 10 Performance Maintenance Tutorials
Read Chkdsk Log in Event Viewer in Windows 10


https://docs.microsoft.com/en-us/win...ommands/chkdsk