Een Microsoft-bestandshosting- en synchronisatiedienst.
Hello. Thanks for reaching out.
Before anything else, are you signed into Windows with your own Microsoft account, or does the device show another account under Settings and Accounts?
If an unknown OneDrive appears, open the OneDrive icon, select Help and Settings, then Settings, go to the Account tab, and select Unlink this PC. This stops the sync and removes access without needing to log in.
After unlinking, check File Explorer and move your school files back to a local folder. If your files are missing, look in the OneDrive folder on your PC or check the OneDrive Recycle Bin for your account through the official OneDrive website. If your school manages the device, contact your school IT before you delete or move anything.