Flitter Post Update File Recovery

After updating Flitter on my Windows system, I've encountered a perplexing issue where certain application files have seemingly vanished from my disk. Unfortunately, I did not receive any error messages during or after the update, which adds to the confusion. I am in urgent need of a skilled professional who can assist with this issue.

Ideal Skills:
- Proficient in Windows OS
- Experienced in dealing with Flitter application
- File recovery specialist
- Troubleshooting expert

Requirements:
- Diagnose the problem and recover the lost application files
- Provide insights on the cause of the issue
- Suggest preventive measures for the future