Honestly, looking on the bright side, if you're planning to give your PC to someone else, this is actually a relief.
AI tools often debate the exact technicalities. TRIM sends the erase command right away, while the SSD's background cleanup actually wipes the cells shortly after. But regardless of the exact timeframe, after 3 to 4 months of daily SSD use, those videos are 100% gone and completely unrecoverable by the next owner.
If you want total peace of mind for all your other personal files before handing over the PC, you can do a full Windows reset:
- Press "Windows + I" to open Settings and go to "System > Recovery";
- Next to Reset this PC, click "Reset PC";
- Choose "Remove everything";
- Select either "Cloud download" or "Local reinstall";
- On the Additional settings screen, click "Change settings", toggle "Clean data" to "Yes", click "Confirm", and click "Next" to proceed.
This will safely wipe all your account data and files for the new user. Hope this gives you peace of mind.
Source: https://support.microsoft.com/en-us/windows/experience/backup-recovery/reset-your-pc
Feel free to ask any questions you may have.