Posted 24 January 2013 - 16:05
It depends on where you live, but in Australia $125 would be quite reasonable. This is approximately the amount that I charge for a complete reinstall (as my time, as a consultant, is valuable) excluding software.
It takes time to backup all the data making sure nothing is missed, reinstalling Windows (with Downgrade rights in this case), installing the required software again (MS Office/Specific 3rd party), installing essential software that most people would need or use (MSE, Malwarebytes, Adobe Reader/Flash, Skype), restoring saved data, changing settings, installing drivers, installing updates, making sure everything is working properly and troubleshooting if necessary.
Not all of it can be done simultaneously, it takes several hours of on/off work on it. I can do other stuff while I'm waiting so I round it down based on approximately "2 hours" of actual work.