The installer had a registry writing problem:
Open your regedit (see "I can't uninstall LS, how can I switch back?") and check these entries:
HKEY_LOCAL_MACHINE \ Software \ Windows NT \ CurrentVersion \ IniFileMapping \ system.ini \ boot \
check if the shell is set to:
SYS:Microsoft\Windows NT\CurrentVersion\Winlogon
If it is, set it to:
USR:Software\Microsoft\Windows NT\CurrentVersion\Winlogon
*Note:
SYS:Microsoft\Windows NT\CurrentVersion\Winlogon <-- Wrong
USR:Software\Microsoft\Windows NT\CurrentVersion\Winlogon <-- Right
Now check:
HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \ BrowseNewProcess \
if the entry BrowseNewProcess = "YES"
, if it is set to "NO", change it, but if there
issn't any Entry called BrowseNewProcess, just rightclick -> New -> Key
name it to BrowseNewProcess and set the value to "YES".
The last one to check:
HKEY_CURRENT_USER \ Software \ Microsoft \ Windows \ CurrentVersion \ Explorer \
the entry called DesktopProcess
.
The value has to be "1".
if the entry doesn't exist, rightclick -> New -> DWORD, name it to DesktopProcess
and set the value to "1"