[Tilt, TyTN II, MDA Vario III Windows Mobile ROM De] af974:
These are the Reg keys that point to SQM:

In red seems to be the key for reminder after the first notification.

But you can try to set SQM Enabled= dword:0

Im trying to remake my base kitchen , ive lost data on USB hard disk.:(

REGEDIT4
[HKEY_LOCAL_MACHINE\System\SQM]
"Enabled"=dword:1 ; SQM data gathering enabled state
"UploadEnabled"=dword:1 ; SQM data upload enabled state
[HKEY_LOCAL_MACHINE\Drivers\BuiltIn\SqmEngine]
"Dll"="sqmce.dll"
"Prefix"="SQM"
"Index"=dword:1
"Order"=dword:1
"IClass"=multi_sz:"{A32942B7-920C-486b-B0E6-92A702A99B35}"
"Flags"=dword:2
[HKEY_LOCAL_MACHINE\System\SQM\Engine]
"MachineId"="{00000000-0000-0000-0000-000000000000}"
"UserId"="{00000000-0000-0000-0000-000000000000}"
"MaximumSessionSize"=dword:FFFF ; Default: 64 KB
"MaximumPacketPoolSize"=dword:FF ; Default: 255
"MaximumFileQueueSize"=dword:20 ; Default: 32
"MaximumUploadFolderSize"=dword:40000 ; Default: 256 KB
"PacketProcessorThreadPriority"=dword:FB ; Default: THREAD_PRIORITY_NORMAL (251)
"UploadFolderFilePattern"="_%d.dat"
"PersistentSessionFolder"="\\Windows\\System\\SQM\\Sessions\\"
"StudyID"=dword:0
[HKEY_LOCAL_MACHINE\System\SQM\Sessions\Global]
"MaxSize"=dword:FA0
"Timeout"=dword:15180 ; one day in milliseconds
"Persistent"=dword:1
[HKEY_LOCAL_MACHINE\System\SQM\Sessions\PMWeek]
"MaxSize"=dword:FA0
"Timeout"=dword:93A80 ; one week in milliseconds
"Persistent"=dword:1
[HKEY_LOCAL_MACHINE\System\SQM\UploadSettings]
"UploadFolder"="\\Windows\\System\\SQM\\Files"
"UploadEvent"="System/SqmUploadReady"
"UploadRetryInterval"=dword:5265C00
"ThrottleInterval"=dword:48190800
"ConnectionFlags"=dword:1
[HKEY_LOCAL_MACHINE\Services\SqmUpload]
"Context"=dword:0
"Dll"="sqmsvc.dll"
"Order"=dword:99
"Keep"=dword:1
"Prefix"="SQM"
"Index"=dword:0
"DelayLoadOnEvents"="SDP_DATA_AVAILABLE"
[HKEY_LOCAL_MACHINE\System\SQM]
"Enabled"=dword:1 ; SQM data gathering enabled state
"UploadEnabled"=dword:0 ; SQM data upload enabled state
"EnableUI"=dword:1 ; Show event-triggered prompt to join and control panel applet
"PromptDelayMin"=dword:B40 ; Number of minutes (in hex) to delay before displaying prompt after receiving initial event notification
[COLOR="Red"][HKEY_LOCAL_MACHINE\Software\Microsoft\WPU]
"DelayReminderMin"=dword:B40 ; Number of minutes (in hex) to delay before displaying prompt after receiving initial event notification[/COLOR]
[HKEY_LOCAL_MACHINE\System\SQM\Sessions]
"MaxTransient"=dword:100
"TransientSignature"="sqmdata%02d.sqm"
"TransientDir"="\\windows\\SqmTempFiles"
"TransientFlags"=dword:0
"FlushInterval"=dword:0
[HKEY_LOCAL_MACHINE\System\SQM\Sessions\Global]
"MaxSize"=dword:5000
"Timeout"=dword:15180
"Persistent"=dword:1
"Flush"=dword:1
"SessionCount"=dword:0
[HKEY_LOCAL_MACHINE\System\SQM\Sessions\BiWeekly]
"MaxSize"=dword:FA0
"Timeout"=dword:127500
"Persistent"=dword:1
"Flush"=dword:1
"SessionCount"=dword:0
[HKEY_LOCAL_MACHINE\System\SQM\UploadSettings]
"ConnectionDll"="sqmconn.dll"
"ConnectionFlags"=dword:0
[HKEY_LOCAL_MACHINE\System\Uptime]
"Interval"=dword:258
"UserFix"=dword:B4
[HKEY_LOCAL_MACHINE\init]
"Launch100"="uptimesqm.exe"
"Depend100"=hex:3C,00 ; services(=0x3C)
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\State\ScreenOff]
"upt1:"=dword:1 ; D1
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\State\Unattended]
"upt1:"=dword:1 ; D1