Hi,
1) Temporarily disable the page file so that none exist. Reboot.
2) Run this command from elevated command prompt: chkdsk /r
3) When all that is done, re-enable page file.
4) Uninstall Vodafone software:
vodafone_K3805_z_dc_enum vodafone_K3805-z_dc_enum.sys Wed Sep 01 09:31:35 2010 (4C7E55B7)
5) Uninstall VBox software if still needed to try something:
VBoxDD2R0 VBoxDD2R0.r0 Wed Dec 18 11:13:27 2013 (52B1C9A7)
fffff800`04330000 fffff800`04358000 VBoxDDR0 VBoxDDR0.r0 Wed Dec 18 11:13:27 2013 (52B1C9A7)
fffff800`01f16000 fffff800`01f58000 VBoxDrv VBoxDrv.sys Wed Dec 18 11:19:08 2013 (52B1CAFC)
fffff800`01fcb000 fffff800`01ff3000 VBoxNetAdp VBoxNetAdp.sys Wed Dec 18 11:13:29 2013 (52B1C9A9)
fffff800`01e1a000 fffff800`01e45000 VBoxNetFlt VBoxNetFlt.sys Wed Dec 18 11:13:29 2013 (52B1C9A9)
fffff800`01ef0000 fffff800`01f16000 VBoxUSBMon VBoxUSBMon.sys Wed Dec 18 11:13:29 2013 (52B1C9A9)