La versión profesional de XP no tiene números de serie duplicados, puedes probar estos:
P8DW4-YKH8G-Q6J7F-7XJ7J-HGRH6
RX7HQ-GWXWH-Y33DV - 647BF-CJDR3
TTF62-R4Y98-4FBGM-HC6TM-72KMD
KD4RP-WC66H-8WKRM-MD6WP-PV4J3
KJBTG-B4WYX-FDDQT-3K6TV - CWCVD
VBTW8-C32BF-F9XW2-3VH9X-2J29D
QX7W9-3GYPM-3R37V-KW2WP-XXQ7W
VFXTH-CPV74-QJ629-B7Q4V-FXX7T
WVHVR-2KR7W-33X6C-6M7PT-Y4PGB
RKHHP-FCCW2-VR2G6-JKJWH-X3TQY
KJWTV-HPVRK-8FWY3-6V7BX-6T4KD
PMVJ7-MGKG3-Y4HC4-WXXRB-9846W
XJ9QF-HQDP6-HJ23R-7TCF6-3232J
M79FH-HPJ9X-HP83H-JVFKC-BMF2D
FPWV6-HQ34J-MRFKR-JJ4WF-4CTKG
DMPR4-XCMTD-PR3HB-WQHTY-QDR8D
RX6X8-8P8WB-7HGFH-93QDH-74MVQ
G2YXW-Q88XG-JCBCV-JCMBR-HV44G
T32XB-VC2P4-M48DB-VGQVK-RJF76
K8YXR-J2XR4-2P3M8-BT4F4-CPC6B
R9YVM - R43WG-JWH73-XYQ4J-4BDYD
PMW24-VFWPR-6Y6C2-WFG2X-FHR36
VCTX9-23TPD-H97PR-HW6WB-2Q7GB
R7D64-7YGD4 - 23KBH-QJWDD-4RCJ8
P63M9-GVQD3-YBF7V-PCFVB-PK8F6
PMR64-4Y6Q7-BC7WH-72Q6W-PJ7F3
MFKJ7-7F4BR-X72D3 - 46BWT-T3VXY
R7B2J-F3QXD-JVP7F-TJC22-TPFK3
XGVBV-HGH4V-2FXJ9-CHF3J-6B2FT
CV3MX-R2D74-8844P-3PQYP - J7J6W
PHVY9-DKFYF-83WVB-YGYPC-7BTJM
XQDT7-RMX7Y-T4449-GJPRF-RCPRJ
KHH8J-QRQ6W-FHMMG-R248K-2VJCB
B86P9-379QQ-XH2C3-X9CT2-RM3QT
W7JFH-BMP8Y-VJGDF-P2XGV-FH6GM
R32MQ-FR9CR-K9YDG-BP68G-4V4W3
C48KG-8K73J-2W77G-M8D2W-YGBQY
H2633-674G9-RD6DG-TYB3P-CRCJ3
XCBCV-RFFMM-RVVHQ-CGBM7-T6WMB
HGV2V-QKMKB-F3JRJ-M2MR2-DRXHT
B6BP6-JQRM2-R73
XM-TPDVF-G87K8
RWDQB-R733P-4394Q-2GVBK-H9H6M
CBPTG-GQJ2H-JTYDV-QGCYT-HQ8KG
MR9QJ-393G2-WPWQM- RD2CP-XJB3B
FBTKY-MPMPT-8VWKB-WJFG6-R9XKT
JCFJ4-MQ8R4-9JFK8-9CPVY-YG4RM
FTGPX-96MKW-B2RYK-6X7R2- H4X3W
FX9CQ-7MH9W-X8T9F-G6DF2-YYY33
G78C3-GM7TW-RPPCH-Y98JY-RBBR8
XQ9HP-49X4R-94PV8-VPKFP-TTDBM
J4W89-VT39Q-V4XFP-WJ37K-KV9TB
FK6BX-M2TWW-D33WV-XV446-3BX4G
WF8C9-FC4VX-FCFYV-87Y6H-M2FBB
CQ794-XCXXK-T76YT-TM494-RKPR6
GJKKM-MB8RB-WK7YV-K2Y3R-MH26M
T96HW-VJTV4-CWF38-F4W3T-2FYY8
VFKX8-8KRB9-Y7B4V-PFTX9-JKG6D
CKVDR-BB2CW-QR766-Y6QY4-6H8R3
VF9PQ-MD38M-HWGMQ-6RRQR-MT3DM
VP9YP-9TFM4-M2CM2-24QB3-J3MR3
XT6RF-TM3M4-Q6K6F-FYXM6-HBBFW
G62YF-V78DH-994QR-G7Q8M-WBCKY
T3946- YWD7X-PJP9Q-V8BQF-DWD38
CKJPX-Q497D-HF3RP-VR6H7-BCRWQ
PYMFB-VM3YB-HVQRH-R7Y68-HR2K8
XHWMX-HJPP4- GW6VV-J3CJ6-PVWTJ
TDYGF-HCJDF-HF82Q-Y2VPY-2VMTD
HCHWW-CKVWG-22CPY-KDKDW-WV8VJ
R44M8-H9F7D-66VY6- G4QBC-MQVMW
P3JHM-VFX3V-PG6HD-7BJWF-VRYWW
TQFV8-HTF7B-Y3TFQ-TB2YK-64XK8
HW6V3-V7JHX-F4JD8-DTKJX- X9D9Y
HV99Y-HQWX3-YTKBG-2VJ3W-778JT
CM6CD-FC6CF-WQMF2-98FCM-DPG8W
B7R3Q-9FMJ6-4J4KG-YFH2T-J37JB
Q3RCB-8DDCR-G9R2D-VR4VB-MJWGM
R4TTB-JMMW7-7D3QF-9Q4RY-3WWX6
R98YX-98GDQ-V2BQG-CMTT2-JYP6Q
XVWG6-DC8VC-92W82-FBD36-G3PQ6
WVXBW-BKX2C-H2Y63-7YX7R-X9YV3
FJT4G-JYX8F-2KVWC-PQCTR-JCGXM