We have NS 22.8.0.50 installed on 4 PC's all running Windows 10 V1607 with all W10 patches applied. Full scans run on all PC's early each Saturday morning. On 10/1 all four full scans found and deleted cookies. On 10/8, three of the full scans found and deleted cookies, but on one PC, it said no cookies were found. It would normally find 30-40 cookies and delete them.
NS SETTINGS WERE NOT CHANGED - ALL FOUR PC'S WERE SET TO DELETE COOKIES DURING THE FULL SCAN.
On the suspect PC, we did a restart and ran NS Live Update (no updates needed). Then we ran a manual Quick Scan, which also normally finds and deletes cookies on all 4 PC's. Again, the other 3 PC's found and deleted cookies, but not the fourth.
We have already tried cycling through the three Scan/cookie settings of "Ask Me", "Ignore" and then back to "Delete" on the suspect PC, but no cookies were ever found in any mode.
We know by using other tools (Ccleaner and Internet Explorer -> Options) that there ARE actually cookies on the suspect PC, including our Amazon login cookie which NS normally deletes. But so far, no matter what we try, NS does not detect or delete the cookies on this one PC. NS on all three other PC's appears to be completely normal.