Hi,
Thank you for posting your question to Q&A forum.
Is backing up to a share folder is a good idea?
Shared folder is one option to save the backup data. The best way to protect backups data is to use a destination that is offline, offsite or both. Common ways are to back up to USB drive or RDX disk, and to take those disks offline (disconnect them) and offsite.
If you would like to proceed a bare-metal backup, we suggest that you could read below article, which clarifies planning when and whereto back up your system in the right way.
https://www.backupassist.com/blog/bare-metal-disaster-recovery-guide
You can create a daily backup job in Windows Server Backup and select the time to run backups. Then the backup will automatically take place at the scheduled time.
Please refer to below video for detailed steps to proceed the backup.
https://www.youtube.com/watch?v=hsw6_GgT0c0
Hope above information could help you.
Thanks,
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