If you find you’re receiving the below alert within event viewer, then this is what worked for me:
1) Click Start
2) Type regedit
3) Expand Computer
4) Expand HKEY_USERS
5) Expand S-1-5-18
6) Right click Printers
7) Click New Key and name the key connections
Should stop the alert coming through.
Please be careful when amending the registry. Always make a backup incase issues occur. If unsure, get in touch with an I.T professional.
“The print spooler failed to reopen an existing printer connection
because it could not read the configuration information from the
registry key S-1-5-18\Printers\Connections. The print spooler could not
open the registry key. This can occur if the registry key is corrupt or
missing, or if the registry recently became unavailable.”