How to remove system junk files?

1. Use of special registry clean tools, such as “KeepPCSmooth“, Download From this.

2. Define a .bat file to auto delete yourself.
Save as any file name. Bat to run
@ Echo off
echo Cleaning up system junk files, please wait ……
del / f / s / q% systemdrive% \ \ *. tmp
del / f / s / q% systemdrive% \ \ *. _mp
del / f / s / q% systemdrive% \ \ *. log
del / f / s / q% systemdrive% \ \ *. gid
del / f / s / q% systemdrive% \ \ *. chk
del / f / s / q% systemdrive% \ \ *. old
del / f / s / q% systemdrive% \ \ recycled \ \ *.*
del / f / s / q% windir% \ \ *. bak
del / f / s / q% windir% \ \ prefetch \ \ *.*
rd / s / q% windir% \ \ temp & md% windir% \ \ temp
del / f / q% userprofile% \ \ cookies \ \ *.*
del / f / q% userprofile% \ \ recent \ \ *.*
del / f / s / q “% userprofile% \ \ Local Settings \ \ Temporary Internet Files \ \ *.*”
del / f / s / q “% userprofile% \ \ Local Settings \ \ Temp \ \ *.*”
del / f / s / q “% userprofile% \ \ recent \ \ *.*”
garbage removal system echo Done!
echo. & pause