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Set this batch file in "C:\Tech" and schedule a task to run it with administrative priviledges. The script below should create two log files on it's own with the date and time of "starting" and "stopping" in the same folder. It should also start backing up on "4mm DDS" tape drive (change this to your hardware) in overwrite mode and name the tape using the date and time. This should provide a unique name every time it is run. The next few commands append to the tape with the same name (the one still in there).

(the eject command doesn't quite work yet, but has been left as a future reminder to include it at some point)

@echo off
c:
cd\tech
FOR /F "Tokens=1-4 Delims=-/ " %%i IN ('date /t') DO SET dt=%%i-%%j-%%k-%%l-
FOR /F "tokens=1-4 delims=:/ " %%i IN ('TIME /t') DO SET dt=%dt%-%%i-%%j

echo ===   ===   ===   ===   ===   ===   ===   Start %dt% >1start.log

%windir%\system32\NTBACKUP.EXE backup E:\ /j "E Drive" /n %dt% /p "4mm DDS" /d "Daily Backup"    /v:yes /r:no /l:s /m normal /rs:no /hc:on  /um
%windir%\system32\NTBACKUP.EXE backup D:\ /j "D Drive" /t %dt% /d "Daily Backup" /a /v:yes /r:no /l:s /m normal /rs:no /hc:on
%windir%\system32\NTBACKUP.EXE backup systemstate C:\ /j "C Drive" /t %dt% /d "Daily Backup" /a /v:yes /r:no /l:s /m normal /rs:no /hc:on
rem %windir%\system32\NTBACKUP.EXE eject

FOR /F "Tokens=1-4 Delims=-/ " %%i IN ('date /t') DO SET dt=%%i-%%j-%%k-%%l-
FOR /F "tokens=1-4 delims=:/ " %%i IN ('TIME /t') DO SET dt=%dt%-%%i-%%j
echo ===   ===   ===   ===   ===   ===   ===   Stop %dt% >2stop.log