What to do if Windows 7 is slow to boot and a black screen appears with a small yellow lock

What should I do if win7 starts slowly and appears with a black screen and a small yellow lock?

1. Run --cmd, run the "NETSHWINSOCKRESETcatalog" command

2, and then restart the Systemeventnotification service.

If an error is prompted to enter safe mode, re-type run-cmd, run the "NETSHWINSOCKRESETcatalog" command, and then restart the Systemeventnotification service, which will display that the system has recovered and restarted normally.

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