SQL Installation Error

SQL SERVER Installation - Attempted to perform an unauthorized operation

Error While Installing SQL SERVER 2008 R2 SP2 Express Edition: - "Attempted to perform an unauthorized operation".



To resolve this problem, use following method :

If you're running 64-bit Windows 10, version 20H2 (19042.xxx), you must install the Edge browser version 86.0.622.56 or a later version that includes the fix for this problem. To see the version number in Edge, select Settings > About Edge.

  1. To manually update the Edge browser, follow these steps:
    1. Start Microsoft Edge.
    2. Select the Settings (ellipsis) button in the top-right corner.
    3. On the Settings menu, select Help and feedback > About Microsoft Edge.  [Note - Edge automatically checks for updates.]
    4. To complete the Edge update installation, select Restart.
  2. Update the Windows and Windows Drivers (If ANY).
  3. Disable antivirus and system firewall.
  4. Restart the system with Windows Update.
  5. Now try to Install SQL SERVER 2008 R2 SP2 Express edition.