Hello,
same here too even using tool clean install in safe mode .
I have 3 pc (2 xppro and 1 seven) , not tried on seven for now (because of issues on 2 xp pcs).
-First one : spent 2 hours because when I boot all windows svc were down (du to RPC svc ?) , but it seems to be ok now
-second : spent 2 days (all this WE , 18/24h) , pc freeze just after welcome windows , but the worst is the same thing happened also in safe mode , Last Known Good Configuration didn't work anymore , no more happy with recup console
finally I hope It's good now , using an another hdd to replace older reg files on system32/config (software,system,sam,security and default)
For now I 'm waiting to install avast on it (v8 or v9) , I don't use the internet network , I'm tired I need some sleeping time.
Sure , avast 2014 need more beta test to be a final version at least on some winxp config , and sure it able to do very bad things on registry settings (maybe more damage than many virus themselves
)