Note: Download and extracting File. Paste the final original upgradedownload.exe into the path as following. And then reboot your computer.
Perfectly fix the system error caused by upgradedownload.exe file.
1. The system shows up "the file is running, it can not be overwriten..."
2. The overwriten file could be edited or destroyed after a while or restarting OS.
3. What's more, even though the file was overwriten, the problem was still there. These were weird.
Sometimes it is difficult to determine what causes the file to lose, and there may be one or more reasons. Some files, after retrieving, require re-registration in the system, with registration command: regsvr32 [exe or dll file].
Find the reasons on your own and manually repair one by one, it is indeed a little difficult and time-consuming, so just use the automatic repair tool.