Unfortunately, but we have documented cases in other forums where this happened.

Sometimes replacing the patched file with legit one can be tricky. But, wait with reinstalling, we should be able to fix it.
We’ll try to do diagnostics and fix outside the active windows, in Recovery Environment.

Do the the following:

Please download Farbar Recovery Scan Tool x86 and save it to a flash drive.

[*]Plug the flashdrive into the infected PC.
[*]Restart your computer and tap F8 to bring up the Advanced Menu, then click Repair your computer
[*]Follow the prompt to enter keyboard input method, and then the prompt to enter a password. If the machine does not have a password, simply click Enter.

In the next menu, use the arrow keys on the keyboard to highlight Command Prompt and press Enter.

[*] In the command window type in notepad and press Enter.
[*] When notepad opens, click File and select Open.
[*]Select “Computer” and find your flash drive letter and close the notepad.
[*]In the command window type e:\frst.exe and press Enter.

Note: Replace letter e with the drive letter of your flash drive.

[*]The tool will start to run. When the tool opens click Yes to disclaimer.
[*]Press Scan button.

It will make a log (FRST.txt) on the flash drive.

NEXT …

[*]Type rpcss.dll into the Search: field in FRST then click the Search File(s) button.
[*]FRST will search your computer for files and when finished it will produce a log Search.txt in the same directory the tool is run.
[*] Now you may close the FRST program.
[*]Please attach FRST.txt and Search.txt to your reply.

Please attach it to your reply.