Windows 10: C:/Windows/System32/WDI file keeps getting larger when I delete it

So I had a slow boot on my SSD drive so I decided to clear the WDI file for the first time which was around 756mb then I deleted it and once I restarted the file now became 879mb. Why is this caused? Is it due to something with Windows or something to do with something else?

:)

 

Virus - Please solve me how to deal with this virus

Files Infected:
C:\Windows\System32\kbiwkmbitgwgsj.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmciqigqal.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmjwciwovt.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmneckpmii.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmvffpoevc.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmvxepstfk.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\drivers\kbiwkmbjoprotq.sys (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\drivers\kbiwkmoikuyrfl.sys (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\drivers\kbiwkmotaonqts.sys (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmhwubyyih.dat (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmijdcuxsj.dat (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmijhtnyjv.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmjakrmkwx.dat (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmklfwpqur.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmqwmqrnxn.dat (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmrwibvbcs.dll (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmsobtsnwm.dat (Rootkit.TDSS) -> Delete on reboot.
C:\Windows\System32\kbiwkmwsxvowut.dll (Rootkit.TDSS) -> Delete on reboot.

This basicly tells you where the bad files are so what i would now do.

Make sure system restore is turned of because this keeps copys of dodgy files and if you dont turn it of they will keep coming back.

then manulay goto c:\system32 and manulay find the files in that list and delete them one by one (yes it takes time but better than format of you cant be bothered)

after you have deleted the files in the list restart and run the scan again untill you have fully removed the files.

another usefull scanner i use is the norton online scan its free and does a very good job of findind where dodgy files hide, it willl also give you a list at the end with any viruses or bad files that need to be removed. follow the list and manuly delete.

 

Virus - Please solve me how to deal with this virus

Thanks and i've already tried to delete manually but when i try to do that, it shows blue screen and reboot itself.

Even bitdefender and malware bytes arent able to delete it bcz it's in globalroot.

 

C windows installer folder - Delete?

He can do symbolic link redirection and move the files in it to a different location. *Wink
Better try it out in a virtual of first. Just a suggestion.

Like:
First move everything in c:\windows\installer to d:\installercache
Then delete c:\windows\installer folder
Then type this in command mode as admin
mklink /d c:\windows\installer d:\installercache

Removing those installer files is a bad idea. it might prevent you from updating or uninstalling apps.