Enter the illustrated serial key of Windows 10 in the required boxes when asked during the installation of Windows 10 IOS technical preview. Readers may note the given product codes or serial keys work for both the 34bit and 64bit operating systems of Windows 10.

1) Windows 10 Serial Key
NKJFK-GPHP7-G8C3J-P6JXR-HQRJR

2) Windows 10 Serial Key Technical Preview for Consumer
334NH-RXG76-64THK-C7CKG-D3VPT

3) Technical Preview for Enterprise
PBHCJ-Q2NYD-2PX34-T2TD6-233PK

4) Windows 10 Home
KTNPV-KTRK4-3RRR8-39X6W-W44T3

5) Windows 10 Pro
8N67H-M3CY9-QT7C4-2TR7M-TXYCV

Windows 10 Enterprise
CKFK9-QNGF2-D34FM-99QX2-8XC4K

6) Windows 10 Professional
W269N-WFGWX-YVC9B-4J6C9-T83GX

7) Windows 10 Professional N
MH37W-N47XK-V7XM9-C7227-GCQG9

8) Windows 10 Enterprise
NPPR9-FWDCX-D2C8J-H872K-2YT43

9) Windows 10 Enterprise N
DPH2V-TTNVB-4X9Q3-TJR4H-KHJW4

10) Windows 10 Education
NW6C2-QMPVW-D7KKK-3GKT6-VCFB2

11) Windows 10 Education N
2WH4N-8QGBV-H22JP-CT43Q-MDWWJ

12) Windows 10 Enterprise 2015 LTSB
WNMTR-4C88C-JK8YV-HQ7T2-76DF9

13) Windows 10 Enterprise 2015 LTSB N
2F77B-TNFGY-69QQF-B8YKP-D69TJ