Lenovo ThinkCentre M90a User Manual page 4

Restore system files and settings to an earlier
point . . . . . . . . . . . . . . . . .
Restore your files from a backup . . . . . .
Reset your computer . . . . . . . . . . .
Use advanced options . . . . . . . . . .
Windows automatic recovery. . . . . . . .
Create and use a recovery USB device . . . .
Update the device driver . . . . . . . . .
Chapter 7. CRU replacement . . . . . 47
What are CRUs . . . . . . . . . . . . . . .
Replace a CRU . . . . . . . . . . . . . . .
Computer stand . . . . . . . . . . . . .
Rear cover . . . . . . . . . . . . . . .
Optical drive . . . . . . . . . . . . . .
Optical drive holder . . . . . . . . . . .
System board shield . . . . . . . . . . .
VESA mount bracket cover . . . . . . . .
VESA mount bracket . . . . . . . . . . .
Storage drive and storage drive bracket . . .
M.2 solid-state drive . . . . . . . . . . .
Memory module . . . . . . . . . . . . .
ii
M70a and M90a User Guide
Chapter 8. Help and support . . . . . 79
44
Self-help resources . . . . . . . . . . . . .
44
Call Lenovo . . . . . . . . . . . . . . . .
44
Before you contact Lenovo . . . . . . . .
45
Lenovo Customer Support Center . . . . . .
45
Purchase additional services. . . . . . . . . .
45
Appendix A. Important safety
46
information . . . . . . . . . . . . . . . 83
Appendix B. Accessibility and
47
ergonomic information . . . . . . . . 97
48
48
Appendix C. Supplemental
52
information about the Ubuntu operating
53
system . . . . . . . . . . . . . . . . . 101
56
58
Appendix D. Compliance
61
information . . . . . . . . . . . . . . . 103
63
65 Appendix E. Notices and
70 trademarks . . . . . . . . . . . . . . . 113
74
79
80
80
80
81