When I attempt to run chkdsk c: /x/r at boot time on my Thinkpad T61p the light blue screen returns: "Cannot Open Volume for Direct Access". I run Zone Alarm 7.0.408.000. I read on the EE KB that ZA could cause this kind of issue, I therefore reattempted chkdsk firstly with ZA disabled and then after uninstalling it, in both instances without success. I have run sfc and checked for malware. I have a slight suspicion that the Lenovo Thinkvantage security utility may be interfering with the process. All thoughts much appreciated.