Registry and SPTD problems

This chapter is describing problems and their solutions with SPTD and Registry:

SPTD
Registry

Try to disable your security software.

For some products it is only necessary to disable one feature (mostly some "process monitor" or "process alteration"), please visit therefore Security software solutions.

If you can't boot into Windows anymore, press F8 before you see the Windows Logo and select Safe Mode from the list. If you have SPTD 1.62 version or higher installed, driver will not boot in safe mode. Otherwise when you see Press ESC to cancel loading SPTD.sys on the bottom of the screen, you need to press ESC button. This will prevent SPTD from loading.

Uninstall all software that uses SPTD layer (e.g. DAEMON Tools, Alcohol).

Open Registry Editor (in Windows 7, press the start button, type regedit, and press Enter.)

1. Click on HKEY_LOCAL_MACHINE;
2. Click on System;
3. Click on CurrentControlSet;
4. Click on Services



5. Search for sptd;
6. Select Start on the right and double-click it;



7. Enter 4 in Value data;
8. Press OK and reboot your computer.

Now SPTD service is disabled. Continue removing it:

1. Right click on sptd key;
2. Click on Permissions...;



3. Click on Advanced;



4. Click on Owner near the top of this window;
5. Select your user name in the list;
6. Check Replace owner on subcontainers and objects;
7. Press on OK, this will take a little time to complete (it is possible you have to close the Permissions window and reopen it to continue);



8. Check Replace permission entries on all child objects with entries shown here that apply to child objects;
9. Now click on Add...;



10. Enter your user name into Enter the object name to select list;
11. Press on OK;



12. Now check Allow next to Full Control, this gives your user Full Control over this key;
13. Press on OK;



14. In this previous window press on OK and then on Yes, this will take a little time to complete;



15. Press on OK now;



16. Right click on sptd key and then select Delete;



17. Press on Yes to delete SPTD key;

Now reboot your computer.

If it isn't working right now, please check the following keys in registry:

• HKEY_LOCAL_MACHINE\Software\19659239224e364682fa4baf72c53ea4 (DT Lite)
• HKEY_LOCAL_MACHINE\Software\14919ea49a8f3b4aa3cf1058d9a64cec (DT Pro)

This is volatile key of DAEMON Tools installation which should disappear after reboot. If it still exists, delete it, and try again.

If you have problems with SPTD layer installation, download SPTD stand-alone installer from http://www.disc-tools.com/download/sptd

• x86 version is for 32bit OS (Windows 2000, XP and above)
• x64 version is for 64bit OS (Windows XP x64, Vista 64bit, etc.)

Run the SPTD installer and update to the latest version. After reboot run installer again, and check the message. If it says SPTD version (currently v1.76) detected, SPTD installed correctly. You can continue with DAEMON Tools installation then.

If it says no SPTD layer version detected, or gives an error message, DO NOT install DAEMON Tools!

Please leave a message in our forum if you still have problems.

Please check permissions and ownerships of the following Key in regedit (In Windows 7, press the start button, type regedit, and press Enter.):

HKEY_LOCAL_MACHINE\System\CurrentControlSet\Enum

The following users must have Full Access to this key and its subkeys:

• Everyone
• SYSTEM

It is possible you have to set the Ownership to your user name (also to its subkeys), before you can change the above mentioned permissions. How to do that is described above.

Check if ACPI is enabled in your BIOS (restart your computer and then you should see a message like Press Del to enter setup. That key varies from BIOS to BIOS, sometimes it is F2 or Del).