My window was running speedy but now message appear that rvhost.exe has been typed incorrectly find that and now speed is slow file open late why is so is that exe lost and how to repair exe if lost

There could be many reasons for your computer slowing down, one you haven't defraged it regularally. Also the more stuff you place on your hard drive the slower a computer goes. So I suggest running a Disk clean to get rid of files and Temp files you don't need. If running windows 95/98 also at the same before running defrag run scandisk.

I Have Cleaned Hard Drive And Lowered Stuff But Still Speed Of Window Is Slow
There Is Rvhost Exe Lost Message May Be It A Reason How To Look This Repair