Method One, use QQ computer housekeeper
1. We found "computer clinic" in "QQ computer housekeeper" as shown in the following picture.
2. Then we clicked on the "Tencent zone" above, and then we clicked on the top search input "QQ installation" as shown in the picture
3. Then we find the first "QQ can not install" click to enter and then click "Repair Now"
Method Two, remove the previously installed QQ
1. We in the computer "start" + "" Control Panel "then we go into the" uninstall or more begging program "to remove the QQ program;
2. Clear the QQ in the Windows 7 system residue files;
3. Then we go into the system "registry to clear the QQ residue files;"
4. Then we restart the computer;
5. Finally again download and install the QQ program.
Friendly tips, if such installation, we'd better be a more path Oh, do not install the same as the previous QQ directory.