Not sure if I see the cause for your issues, but i do see something which should be investigated.
Please go to:
VirusTotal- On the page you'll find a "Browse" button.
- Next to the browse button you'll see a box to enter text.
- Please copy/paste the following in BOLD:
C:\Windows\system32\nbdtn\Director_yidnjtxsg.dll
- Then click the "Send File " button just below.
- This will scan the file. Please be patient.
- Once scanned, copy and paste the results in your next reply.
Do you know anything about the above file?