1.按Win键+R打开运行或者右击桌面左下角的“开始”按钮，从弹出的右键菜单中选择“命令提示符(管理员)”项。

2.从打开的“命令提示符”窗口中，输入密钥激活码，按回车键即可弹出如图所示的“已成功卸载了产品密钥”的提示。

3.再输入以下密钥激活码，按回车键后将弹出“成功的安装了产品密钥”的提示窗口。

windows 8标准版30天试用安装密钥：BN3D2-R7TKB-3YPBD-8DRP2-27GG4

windows 8专业零售版30天试用安装密钥：XKY4K-2NRWR-8F6P2-448RF-CRYQH

专业版的安装密钥(30天试用)是NG4HW-VH26C-733KW-K6F98-J8CK4

DNJXJ-7XBW8-2378T-X22TX-BKG7J

2GRXF-DMN2D-6C7W9-3BPRD-JTT7J

NWVW8-8HK7M-CTK8H-F9J9Y-DM9VJ

BTNYC-XCF8K-BK34M-6YK6M-QJWX8

PNKP9-HB6H8-4G8W3-6FF76-72V3W

JFNH9-JF2JX-RMVWB-KF6QB-6VFDW

KYVYP-23NTR-DKKGV-PV4X7-R873W

8JP74-NFCKY-49KW4-PDR9F-K4MQW

9NDJC-WXBJ6-VKHHM-YWR4K-JW73W

JJNBR-3YQMV-3QC8J-VK4DF-7H2K8

9NCK2-XPC9M-VT782-8KRGC-Q3RDW

KNTPK-7MWYF-QFBMH-DHFDD-KKR98

Q4XHB-HKNGQ-2WHR4-DT4KF-Q9G7J

BQV4N-X2DCW-9CH3J-XCH86-68WX8

74N3T-3C88B-QTX44-TBW4F-CRXVJ

Q7GYN-7WB2W-XT62T-KXH4W-JFCK8

4PKN6-G72FH-HVJDY-M6P8Q-6267J

2HD8C-NT3QF-HYWWT-2GY9B-B4CK8

K8WRD-NY7CJ-KH9YQ-84RTP-7B9VJ

48Y7N-634YY-R833X-36T42-YKG7J

2HYGN-8647P-XJ3TY-HM6P9-4JKVJ

PNK8B-G4WJ8-6T78D-TF39K-BKG7J

4N42J-YJKWB-DYVBP-KYPK2-BW73W

P22X2-KN2WD-994WB-QKPPC-BR8X8

B2CX4-KDNCT-RFTH8-6J98Q-2WBQW

VMNVQ-VH6XM-GCYW7-4X8VM-8FDG3

M2XN7-4PT2W-H8GJF-X7D9Y-MY2KQ

Q9QX3-BNJ4R-WVGMC-RJK89-XKT63

8N4QH-2WT9H-T7GRF-3JBKY-DPBQD

PW39T-8NHVC-JGCJD-CYB6F-F6V3D

Windows 8 Pro零售版密钥： DWV49-3GN3Q-4XMT7-QR9FQ-KKT67

N4WY8-DVW92-GM8WF-CG872-HH3G7

J6FW2-HQNPJ-HBB6H-K9VTY-2PKT7

MMRNH-BMB4F-87JR9-D72RY-MY2KV

39DQ2-N4FYQ-GCY6F-JX8QR-TVF9V

Q4NBQ-3DRJD-777XK-MJHDC-749T7

D32KW-GNPBK-CV3TW-6TB2W-K2BQH

NBWPK-K86W9-27TX3-BQ7RB-KD4DH

2NF99-CQRYR-G6PQ9-WYGJ7-8HRDH

F7BDM-KTNRW-7CYQP-V98KC-W2KT7

4JKWV-MNJCY-8MW3Q-VJYGP-DC73H

FFX8D-N3WMV-GM6RF-9YRCJ-82KT7

2CMGK-NMW4P-B846H-YXR6P-27F9V

D2GBF-NGBW4-QQRGG-W38YB-BBFDH

NTVHT-YF2M4-J9FJG-BJD66-YG667

GBJJV-YNF4T-R6222-KDBXF-CRYQH

3NHJ7-3WWQK-4RFTH-8FHJY-PRYQH

988NM-XKXT9-7YFWH-H2Q3Q-C34DH

TGXN4-BPPYC-TJYMH-3WXFK-4JMQH

N9C46-MKKKR-2TTT8-FJCJP-4RDG7

2VTNH-323J4-BWP98-TX9JR-FCWXV

D7KN2-CBVPG-BC7YC-9JDVJ-YPWXV

Windows 8.1核心版334NH-RXG76-64THK-C7CKG-D3VPT

Windows 8.1专业版XHQ8N-C3MCJ-RQXB6-WCHYG-C9WKB