Quick answer: After reinstalling Windows, all saved WiFi profiles are gone. If you have a backup from before reinstalling, use it to reconnect. If you did not backup, reconnect manually using the router sticker or router admin page.
If You Backed Up Before Reinstalling
Option A: Restore from netsh XML backup
- Connect your USB drive with the WiFiBackup folder
- Open Command Prompt as administrator
- Run:
netsh wlan add profile filename="D:\WiFiBackup\NetworkName.xml" user=all - Repeat for each XML file (or use the batch command below)
for %i in (D:\WiFiBackup\*.xml) do netsh wlan add profile filename="%i" user=allOption B: Use passwords from CSV export
- Open your exported CSV file
- Find the network name and password for each network
- Click the WiFi icon in the taskbar
- Select the network and enter the password when prompted
- Windows saves the connection for future use
If You Did Not Backup Before Reinstalling
Without a backup, you need the password from another source:
- Router sticker: Home networks usually have the default password on the router
- Router admin page: If connected via ethernet, access the router at its IP and find the WiFi password in wireless settings
- Another device: If another phone or PC is still connected to the same network, the password may be viewable (on Android: WiFi settings → Share; on iPhone: WiFi settings → hold to copy password)
- Network administrator: For work networks, contact IT for credentials
For Next Time
Before your next reinstall, use Advanced Password Recovery Suite to export all WiFi passwords to a USB drive. It takes under a minute and prevents this problem entirely.
Advanced Password Recovery Suite
Export all WiFi passwords before the next format. One click, all networks, one backup file.
Frequently Asked Questions
Summary
With a backup: import profiles via netsh or manually enter passwords from the CSV. Without a backup: check the router sticker, router admin page, or a connected device. Always back up next time with Advanced Password Recovery Suite.
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