Error:
The process cannot access the file ‘C:\Users\dgust\AppData\Local\Temp\sqlctr-(c951a57e-6743-43d9-8726-5dfe86a14834).ini’ because it is being used by another process.
Snap Shot:

Causes:
 Antivirus might be blocking the installation.

 Workaround 1.
 ⦁    Disable Antivirus in the system .
 ⦁    Disable windows Defender [ If exists]
 ⦁    If antivirus is not found in tray, check in control panel 
     if any antivirus are installed for example… Segurazo, 
     net protector, byte fence etc… 
 If above workaround did not solve issue, Contact Relyon support.