Upgrading server 2008 32bit to server 2008 r2

I have a client that has windows server 2008 32bit and need to run TLS 2.1. We need to upgrade it to windows server 2008 R2. Does any know if you can just upgrade it or do you have to do a new install?

As we explained in our notification from January 15, 2016, the National Association of REALTORS® is currently upgrading the REALTOR® Ecommerce Network to version 1.2 of the Transport Layer Security (TLS) protocol. We’ve since learned that PayPal’s credit card processing service is also being updated to require TLS 1.2. These services have announced the following deadlines, after which the TLS 1.2 protocol will be required for all credit card transactions:
•March 23, 2016 – REALTOR® Ecommerce Network Deadline for TLS 1.2 Support
•June 17, 2016 – PayPal Deadline for TLS 1.2 Support

After the date listed above for the service used by your association, all credit card transactions must be processed using servers and workstations that support the TLS 1.2 standard:
•Server Requirements – Windows Server 2008 R2 or later
•Workstation Requirements – Windows 7, Windows 8.1, or Windows 10, with Microsoft .NET Framework version 4.5 or later
Chris SlackIT ConsultantAsked:
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Cliff GaliherCommented:
You are looking at doing a new install. You can't in-place upgrade from 32-bit to 64-bit.

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Muzafar MominCommented:
windows 2008 R2 is a 64bit OS and u will not be able to upgrade windows 2008 32bit server to R2

you will have to do a fresh/new install

ensure you take the proper backups before fresh installation
Lee W, MVPTechnology and Business Process AdvisorCommented:
As the others have said, it's absolutely impossible to do an upgrade because the bit levels are different.  It MUST be a clean install.
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Windows Server 2008

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