Lenovo 20U1 Hardware Maintenance Manual page 57

Table 6. Major FRUs and CRUs (continued)
No. FRU description
c
Miscellaneous parts kits ( "Miscellaneous parts" on page
56)
d
Label kit
e
Lenovo factory recovery USB key*
* for selected models
Note: The Lenovo factory recovery USB key
It might not come with the computer, and a user might order it from
lenovorecovery , though additional shipping and handling fees might apply.
Self-service CRU
No
No
No
e is used to restore the Microsoft Windows operating system.
https://pcsupport.lenovo.com/
Optional-service CRU
No
No
No
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