When installing QQ, the installation failed. The message displayed is "Please confirm that you have sufficient rights to install software on this computer, or consult your system administrator".

Hello! Please check whether the disk you installed is NTFS type. If so, the administrator account may not have been added to the security permissions of the disk. Please add it to safety. Of course, you can try installing it on another disk. If it can be installed, that's why. If not, then I'll tell you my method according to various possibilities. You might as well try:

1, it is possible that the Trojan horse maliciously cut off your installation program and prevented you from installing it. Try killing with antivirus.

2. The system patch has not been upgraded for a long time, which is not satisfactory. Please try to upgrade the system patch.

3. QQ software was uninstalled before. I suggest you clean up the garbage, because there may be program conflicts between the old version of QQ and the new version of QQ.

4. Check whether there are any programs that QQ can't start. You can clean it up with 360 security guards before starting it, so it won't start from the system. You can also manually enter gpedit.msc to prohibit starting the program.

That's all I can think of now. If not, you can ask again.

I hope my answer will satisfy you.