new virus on the my computer

Hello, I’m a use ad Avast and i find a Trojan.
don’t clean and repaired the Trojan.

the name of Trojan are:

c:\WINDOWS\SYSTEM\sysupd1003.exe
c:\WINDOWS\SYSTEM\124788.exe\inst.EXE
c:\WINDOWS\SYSTEM\124788.exe
Win32:Trojan-gen. {UPX!}

c:\WINDOWS\SYSTEM\tmksrvu.exe
c:\WINDOWS\SYSTEM\tksrv98.exe[UPX]
Win32:Esepor-B [Trj]

c:\WINDOWS\SYSTEM\SRC32R.exe
c:\WINDOWS\SYSTEM\MSTREAMA.exe
Win32:Trojano-025 [Trj]

c:\WINDOWS\SYSTEM\bmk13.exe
c:\WINDOWS\SYSTEM\d3dhcmn.dll
Win32:Trojan-gen. {Other}

c:\WINDOWS\SYSTEM\spoolsrv32.exe
Win32:Downloader-019 [Trj]

I have a Windows 98.
Thank you for a help

If the files are in use, windows protects them from deletion or moving them.

Can you reboot your computer into safe mode and run an avast scan again.

You might also want to take a look at this thread Advice & Tools for virus/trojan/malware Removal & Prevention.