Compatibility of MS Exchange 2010 SP3 with Win 2003 Domain controller infra

We have Windows 2003 Domain controller and planning for migration to Windows 2012 R2.

Now I realized that our existing Exchange(2010 SP2) infra is not suitable with Win2012 R2. need to upgrade Exchange service pack to SP3.

Please let me know can I install SP3 on exchange with Win2003 DC.. Is it compatible?
psanjoySystem AdministratorAsked:
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David Johnson, CD, MVPOwnerCommented:
Yes you can update exchange to the latest CU/SP

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psanjoySystem AdministratorAuthor Commented:
Thanks for confirmation. installed successfully,
psanjoySystem AdministratorAuthor Commented:
Installed SP3 on Exchange 2010 Successfully, but below 4 new mailbox databases been created automatically after the SP3 installation and restart on MB server

Mailbox Database 0073667745,
Mailbox Database 0123297646
Mailbox Database 1412261303
Mailbox Database 2010817970

Shall I delete mail box databases, please advice
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