Hello and welcome. I've moved your post to its own new thread because each case is different and must be treated as such.
The issue is being caused by ESET. Uninstall it in safe mode with the tool found here:
AV Uninstallers - Windows 7 Forums
Reboot and install MSE to replace the antivirus.
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Also uninstall Daemon Tools. Then use this installer/uninstaller to remove sptd.sys. Do not update instead while using. There's a choice:
DuplexSecure - Downloads
Reboot and install PowerISO to replace it. The disc emulation part of the software is free forever:
PowerISO - Create, Edit, Compress, Encrypt, Split, Mount, Extract ISO file, ISO/BIN converter, Virtual Drive
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Update your Ricoh card reader drivers from your laptop manufacturer's website:
rimspe86 rimspe86.sys Wed Jul 01 19:50:14 2009
risdpe86 risdpe86.sys Tue Jun 30 06:28:26 2009
Do the same for the Conexant modem drivers:
VSTAZL3 VSTAZL3.SYS Wed Oct 15 20:30:03 2008
VSTDPV3 VSTDPV3.SYS Wed Oct 15 20:32:04 2008
VSTCNXT3 VSTCNXT3.SYS Wed Oct 15 20:29:13 2008
And finally, while there, install the latest ValueAdded Package.