Many are facing problems to install Force.com IDE in Eclipse.
The possible ways to install Force.com IDE in Eclipse successfully are
- Move Eclipse folder to other Drive(Ex: D: drive)
- Move Eclipse folder out of Program Files folder, if you don’t have administrator rights
- Check the proxy, if you are working under some internet proxy
- Last but not least, copy eclipse folder from the person who has successfully installed Force.com IDE in his/her Eclipse
Cheers!!!