After upgrading the official version of win10, did the software still exist?

Microsoft has officially launched the win10 system for three days, although some users can't wait to choose to upgrade, but some users are still worried about the error after upgrading win10, or already in the original The PS software, QQ, cool dog music and other software that the system has worked hard to install will not exist. Does the original software really exist after upgrading the win10 system? Is upgrading win10 equivalent to reinstalling the system?

In fact, after the upgrade of win10, the software installed in the original system is all in, and will not be lost. Generally, it has no effect. It may just be a common long-term upgrade. The upgrade win10 system is not a reinstallation system, so you don't have to worry about the original software loss after the upgrade.
About the software loss problem that users worry about after upgrading win10, here, although there are multiple channels to upgrade, Tencent win10 upgrade assistant and 360win10 assistant have stopped upgrading, because many users encounter various upgrades in win10 The error problem caused the upgrade to fail. It is also recommended not to upgrade the system first.