Windows7 can not be activated by flashing the certificate. How to do

After brushing in the SLIC certificate, Win7 is not necessarily activated. This kind of thing has been used for a long time when I first brushed it, but now it is already a light car, you have encountered In this case, please follow the steps below:
1, use EVEREST to check whether the certificate in the BIOS matches the SLIC you brushed into the BIOS.

2. Check if the serial number is incorrect or it is no longer available. Re-find the serial number of the corresponding version and refresh it again.
3, if it is not, it is recommended to use Win7 soft activation tools, such as "PCSKYS Windows7Loader V3.26", to activate Win7, although the relative hard activation in the flexibility is slightly more troublesome, but no need to refresh.