Hi, anshah,
Many thanks for your response.
It looks like something has went wrong with your Norton Internet Security, therefore, I would recommend you Running the Norton Removal Tool and then doing a fresh install.
However, before doing this, please can you run Malwarebytes' Anti-Malware, clicking on the Free Download button. Please follow the steps to installing it on your system. Please make sure you run the Updater to make the Signatures current. Then, dis-connect from the Internet; this will stop any Threats on your system from Downloading more stuff, should there be any. Please then select the "Full Scan", selecting all available Drives, then click "Scan". Please wait until the Scan Completes. If it Detects anything, please remove these. However, if there is anything Detected in the System32, these should be Repaired and not Removed; please post these Detections here, should Malwarebytes find any if you're not sure. I would be grateful if you could let us know how many Detections Malwarebytes finds. Please, if you're not sure about whether to Remove any Detected Files, post them here, as removing some Files can make your system un-useable.
After the Malwarebytes Scan, and all Detections have been dealt with should Malwarebytes Detect any, please go ahead and Run the Norton Removal Tool, then re-install your 2012 Version; we can then worry about getting you Upgraded after that, as you can easily over-install N.I.S. 2013 right over the top of 2012.
Again, if you have any questions about this, please ask them before proceeding.
Once again, many thanks, and I look forward to hearing back from you.
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Edit:
Regarding your Subscriptions issue with your Norton Account: I recently had an issue with Norton Account. I contacted Norton Support, who were very helpful and friendly, and which got this sorted for me, so I would recommend you contact them regarding this. However, I would suggest waiting until we get this other issue fixed first. Do you know how many Days are left on your Subscription before this Error happened?
*Please Save the Norton Removal Tool to your Desktop, as well as the Norton Internet Security Download saved to your Desktop - un-less you have the N.I.S. 2012 Disc. Then, un-plug you modem, run the Norton Removal Tool, re-start, then click on the N.I.S. 2012 Download/Insert your N.I.S. 2012 Disc in to your computer, and install your N.I.S. 2012 Product again. Being dis-connected will prevent further Infection when your Norton Product is not on your system.*