Actually google is ur best friend. Is this what u looking for?

Delete all files in Dllcache but not the folder itself.
Then edit this file -> %windir%\system32\restore\filelist.xml (remove read only attrib)

----EDIT---

PCHealthProtect>
<VERSION>1.0</VERSION>
<DEFTYPE>E</DEFTYPE>
<FILES>
<Exclude>
<REC>%windir%\explorer.exe</REC>
</Exclude>


<DIRECTORIES>
<Exclude>
<REC>%WINDIR%</REC>

--EDIT---

Source: Hardware geeks.

And yes I think JMI will lock this topic since this is a cracking forum.

Regards,