Please provide more information:
1. Which product did you use jv16PowerTools 2011 or PowerTools Light 2011
I use jv16PowerTools 2011 1053
2. Which type of scan: 'Registry cleaner'? 'Clean & Fix my computer'? or 'File cleaning'?
both
3. Which scan settings: 'Normal system scan setting' or 'More aggressive than system scan'.......
normal setting
4. Can you identify the entry that represents your WiFi driver which is removed by 'Fix/Delete' after the scan?
Atheros
5. I assume you made backups before doing 'Fix/Delete'. Did you restore that backup and was WiFi working again after the restore?
I made a backup so after I restore the wifi is working again.