On the win7 installation sptd1.60 and 1.62 problems

(please teach the real master)

 I Win7
 Ultimate, the installation of sptd1.62 directly at the beginning is not installed, Because there is no following after each reboot, there is no way after that, in fact, after rebooting, it is not installed at all, and then used the online method: 1, enter the device manager, select VIEw - Show hidden devices to show hidden devices . 2. In the Non-plug and play drivers sub-item, find the SPTD item and uninstall it. 3. Run the registry editor Regedit and navigate to HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\services\\eventlog\\System\\sptd to delete the subkey. 4. Continue to locate HKEY_LOCAL_MacHINE\\SYSTEM\\CurrentControlSet\\services\\sptd and delete the subkey. At this point, you should be prompted with an error, ignore it. 5. Locate Services\\sptd and delete all the key values ​​in the subkey. 6. Delete the SPTD.SYS file under Windows\\System32\\drivers. 7. Right-click on the services\\sptd\\Cfg subkey and select Permissions to assign all permissions to the current user. Then delete the 8 and finally delete the sptd sub-item completely. Install DT after rebooting. After all finished running sptd1.62 installer, the following situation: Failed to open service key can not run the installer completely, please teach me how to solve, thank you for the best answer 
 I also encountered this The situation, but later it was done. You create a new HKEY_LOCAL_MacHINE\\SYSTEM\\CurrentControlSet\\services\\sptd folder in the original registry location, and then run the sptd1.62 installer. At this time you can install sptd1.62. I was doing this when I was thinking about it. I didn't expect success.