eb@eab-ux:~$ sudo dpkg -i Downloads/kav4fs_8.0.3-297_i386.deb 
(Reading database ... 510683 files and directories currently installed.)
Preparing to unpack .../kav4fs_8.0.3-297_i386.deb ...
/var/lib/dpkg/info/kav4fs.prerm: 47: /var/lib/dpkg/info/kav4fs.prerm: /opt/kaspersky/kav4fs/sbin/kav4fs-supervisor-control: not found
dpkg: warning: subprocess old pre-removal script returned error exit status 1
dpkg: trying script from the new package instead ...
dpkg: error processing archive Downloads/kav4fs_8.0.3-297_i386.deb (--install):
 subprocess new pre-removal script returned error exit status 1
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
/etc/init.d/kav4fs-supervisor: 28: .: Can't open /opt/kaspersky/kav4fs/lib/rcfunctions.sh
/etc/init.d/kav4fs-wmconsole: 24: .: Can't open /opt/kaspersky/kav4fs/lib/rcfunctions.sh
/var/lib/dpkg/info/kav4fs.postinst: 46: /var/lib/dpkg/info/kav4fs.postinst: /opt/kaspersky/kav4fs/bin/kav4fs-control: not found
sed: can't read /etc/opt/kaspersky/klnagent/connectors.d/kav4fs.conf: No such file or directory
klnagent connectors are reloaded
Errors were encountered while processing:
 Downloads/kav4fs_8.0.3-297_i386.deb
eb@eab-ux:~$ sudo dpkg --purge --force-all kav4fs
(Reading database ... 510682 files and directories currently installed.)
Removing kav4fs:i386 (8.0.3-297) ...
/var/lib/dpkg/info/kav4fs.prerm: 47: /var/lib/dpkg/info/kav4fs.prerm: /opt/kaspersky/kav4fs/sbin/kav4fs-supervisor-control: not found
dpkg: error processing package kav4fs:i386 (--purge):
 subprocess installed pre-removal script returned error exit status 1
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
/etc/init.d/kav4fs-supervisor: 28: .: Can't open /opt/kaspersky/kav4fs/lib/rcfunctions.sh
/etc/init.d/kav4fs-wmconsole: 24: .: Can't open /opt/kaspersky/kav4fs/lib/rcfunctions.sh
/var/lib/dpkg/info/kav4fs.postinst: 46: /var/lib/dpkg/info/kav4fs.postinst: /opt/kaspersky/kav4fs/bin/kav4fs-control: not found
sed: can't read /etc/opt/kaspersky/klnagent/connectors.d/kav4fs.conf: No such file or directory
klnagent connectors are reloaded
Errors were encountered while processing:
 kav4fs:i386
eb@eab-ux:~$ sudo apt-get --purge remove -f kav4fs 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following packages were automatically installed and are no longer required:
  linux-image-4.4.0-38-generic linux-image-extra-4.4.0-38-generic
Use 'sudo apt autoremove' to remove them.
The following packages will be REMOVED:
  kav4fs:i386*
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
After this operation, 0 B of additional disk space will be used.
Do you want to continue? [Y/n] y
(Reading database ... 510682 files and directories currently installed.)
Removing kav4fs:i386 (8.0.3-297) ...
/var/lib/dpkg/info/kav4fs.prerm: 47: /var/lib/dpkg/info/kav4fs.prerm: /opt/kaspersky/kav4fs/sbin/kav4fs-supervisor-control: not found
dpkg: error processing package kav4fs:i386 (--purge):
 subprocess installed pre-removal script returned error exit status 1
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
update-rc.d: warning: start and stop actions are no longer supported; falling back to defaults
/etc/init.d/kav4fs-supervisor: 28: .: Can't open /opt/kaspersky/kav4fs/lib/rcfunctions.sh
/etc/init.d/kav4fs-wmconsole: 24: .: Can't open /opt/kaspersky/kav4fs/lib/rcfunctions.sh
/var/lib/dpkg/info/kav4fs.postinst: 46: /var/lib/dpkg/info/kav4fs.postinst: /opt/kaspersky/kav4fs/bin/kav4fs-control: not found
sed: can't read /etc/opt/kaspersky/klnagent/connectors.d/kav4fs.conf: No such file or directory
klnagent connectors are reloaded
Errors were encountered while processing:
 kav4fs:i386
E: Sub-process /usr/bin/dpkg returned an error code (1)