Win7 update failed solution 1
After entering the pe system, enter the D:\ Windows\ winsxs directory of the win7 system disk
Find the pending.xml file at the bottom of the winsxs directory, possibly xxx.pending.xml and pending.xml.xxx.
If the winsxs root directory is not available, delete it after searching for pending.xml in this directory.
If the prompt cannot be deleted, you need to execute the following command on the cmd command line
Echo y | cacls D:\ Windows\ winsxs\ reboot.xml / p everyone:f
Del / QD:\ Windows\ winsxs\ reboot.xml
Note the drive letter where the winsxs directory is located
