[KSC 12 - How can I Clear a Bloated FTSERVER Directory?]

When using Kaspersky Security Center as a WSUS server, the following folders will gradually increase in size:
C:\ProgramData\KasperskyLab\adminkit\1093\.working\FTServer;
C:\ProgramData\KasperskyLab\adminkit\1093\.working\wusfiles.

You can empty not used Updates in the FTServer and wusfiles folders containing Microsoft updates in Kaspersky Security Center 11:

https://support.kaspersky.com/15304

 

Like said in the original post this proposed solution is not working.

[KSC 12 - How can I Clear a Bloated FTSERVER Directory?]

I have the same issue with our Kaspersky Security Center 12. The files wont get deleted. I can wait 1 day or 12 weeks. No difference.