Rundll32.exe problem please help me

PotatoFarmer

Prominent
May 25, 2017
1
0
510
(Windows 7 ultimate 64bit)So I deleted the rundll32.exe because I thought it was a virus (I now know that was a huge mistake) Is there any way to fix it without the CD-ROM becasue I lost it? Also some games and programs don't work and says dll file is missing although it is located in system32 and sometimes I find the proccesses in Task Manger full with rundll32.exe when trying to open a program and that makes the computer very slow ,I tried to put a copy from syswow64 and winsxs but that doesn't seem to entirely work (I was able to open the control panel), sfc scan doesn't work and says Windows Resource Protection found corrupt files but was unable to fix some of them I tried running it in safe mode and the DISM command didn't work with error 87 and saying the health check option is not recognized in this context I also tried to check the sfc results and there was a problem with prefhost.exe,rundll32.exe and that the replacement was also corrupted ,Thanks in advance