Autocheck not found - Skip Autocheck error

Hello,
checked the HKLM\SYSTEM\Current Control Set\Control\Session Manager

First I ran chkdsk /R:C Nothing was found nor repaired.

1. found the OODBS string with a strange sign and removed it, corrected the entry to autocheck autochk*
Restarted the computer and everything seemed normal.
2. This morning I had the same error Autocheck not found - Skip Autocheck
Went to the registry and found the following entry in Boot Execute : autocheck autocheck autochk*
Again I modified it to the right entry.
I got an error message :
Data of type MULTI_SZ cannot contain empty strings.
Looked it up and according to Microsoft : no action needed the empty string will be removed !

Restarted the computer and I got the same error again but in the registry
the right entry is still present.

Now I really don't understand it any more.

Can someone help me to get rid of this error.

Thanks.

System Windows 7 Home Premium 64 bitSP1

In the meantime I continued searching and I think I found the solution
namely : autocheck autochk*
there must be a space just before the * sign
restarted the computer and there was "so far" no error any more.
I hope this solves my problem.