After a recent virus definition update and scan my computer exhibits one or more of the following behaviors: -black screen where only the cursor is visible.-one or more unresponsive desktop shortcuts.-missing Windows taskbar.

After a recent virus definition update and scan my computer exhibits one or more of the following behaviors: -black screen where only the cursor is visible. -one or more unresponsive desktop shortcuts. -missing Windows taskbar.

RPCSS.DLL Quarantined




Windows may be exhibiting erratic behavior, including missing desktop icons or the inability to interact with desktop icons or your taskbar. Or, after a recent reboot of your computer system, your desktop icons and/or Windows taskbar may have become unavailable after Windows loads; your screen may be blank with an available cursor and no ability to launch the Windows Task Manager.




A recent virus definition update for System Shield included a file which has been commonly targeted by security threats in recent months. This file, RPCSS.DLL, is normally a critical component to the Windows operating system. If you are experiencing issues similar to those described above, rpcss.dll may have been inappropriately quarantined by System Shield.




1. If you can access System Mechanic Professional or System Shield, read ahead. If not, skip to step 2.


The first step to attempt will be removing RPCSS.DLL from quarantine; removing rpcss.dll from quarantine will whitelist the file. A reboot afterwards should return the computer system to regular function.


Removing rpcss.dll from quarantine:

  1. Open System Mechanic Professional
  2. Click on 'Internet Security'
  3. Click on 'Anti-Malware'
  4. Click on the 'Disinfection' tab
  5. Click on 'Manage System Shield Quarantine'
  6. Check the box next to the file: RPCSS.DLL
  7. Once the box is checked a 'Restore This File' option appears on the left; click this box
  8. You will receive a warning message about quarantined files having not been disinfected, select 'yes'
  9. You will then receive another message about excluding that file from future scans, it is very important that you select 'yes' on this dialog, as this will prevent the issue from recurring.


2. If you can access Windows but the steps above have not resolved your issue or you cannot access System Mechanic Professional, read ahead. If you cannot access Windows, skip to step 3.


Through the System File Checker tool or Windows Repair options, restore RPCSS.DLL to normal location and function


Restoring RPCSS.DLL via the System File Checker tool:

Follow the steps detailed on the Microsoft support site here to perform a scan of your system for missing files using the System File Checker tool.


3. If you cannot access Windows, or all steps above have failed, read ahead.


RCPSS.DLL must be restored, either through a Startup Repair or reinstallation of Windows using your Windows installation disc.


Restoring RPCSS.DLL via Startup Repair:

If all previous steps have failed to address your issue, you should attempt to restore the system file via a Startup Repair using your Windows installation disc. Insert the Windows installation disc and restart your computer in order to access Windows Repair options.


Restoring Windows:

If all previous steps have failed, including restoring RPCSS.DLL via Startup Repair, Windows must be reinstalled using your Windows installation disc.

Topic Information
  • Topic #: 16098-1048
  • Date Created: 10/28/2014
  • Last Modified Since: 10/28/2014
  • Viewed: 4772