We know in the Windows NT , Microsoft put the device driver into an crucial position, for driving the technique began grading treatment, like XP, on the use of a three- driven strategy :
1. the original deal Generate, the highest priority ;
2. Windows Hardware Top quality Labs (WHQL) certified drivers , priority ,
Windows 7 Enterprise X86, followed by ;
3. without having signed drivers , requiring consumers to put in as well as directly soon after approval Prohibited.
Windows Vista it?
it to generate further subdivided into over multiple levels , Windows Vista grading coverage is as follows :
one. Microsoft WHQL certified driver
2. Microsoft Certified original Pack drivers (NT Develop Lab Certified)
three. Microsoft signed Windows Sustained Engineering Certified drivers
4. Following the signature with the driver (Enterprise CA)
5. Immediately after the signature from the driver (Class 3 CA Certified)
6. Soon after the signature of the driver (MAKECERT.EXE Certified)
7. Right after Microsoft WHQL -certified edition of the running system on a generate
8. unsigned drivers