1. Go to the directory C: \ Windows \ Microsoft.NET \ Framework64 \ v4.0.30319 \ Config
2. Backup 'machine.config' this file elsewhere
3. Delete the file 'machine.config'
4. Re-open the MMC
Repair record
1. Go to the directory C: \ Windows \ Microsoft.NET \ Framework64 \ v4.0.30319 \ Config
2. Backup 'machine.config' this file elsewhere
3. Delete the file 'machine.config'
4. Re-open the MMC
Repair record