After reinstalling the operating system, there may be different "tails" of the old version or the entire old OS as a whole.
Usually this happens if you do not format the partition before installation, or when the new OS is installed on another partition that did not previously contain the system.
In any case, from old versions it is necessary to get rid, since They can slow down your computer's performance and prevent it from working correctly.
You will need
- CCleaner, FreeSpacer or another program to clean the registry, another PC, an administrator account
Turn on the computer and start the new versionOperating system. If the new OS does not differ from the previous one and you installed it on the same partition, the best solution is to reinstall the OS once again by formatting the partition. Otherwise, you must manually delete all files and directories that contain data about past users. These are the Users folder or the "Users" folder.
Clean the registry. For this purpose it is recommended to use special programs.
If the OS was installed on a different partition, locate the Windows, Program Files, and Users folders and delete them. If you do not quit accessing files from your Computer, Then insert your hard drive into another PC, run the system on it and delete any unnecessary files.
Sometimes after reinstalling Windows 7Problem with access to files and directories. In this case, you need to put permission to access or change the owner. To do this, open the properties of the directory, go to the "Security" tab, click the "Edit" button and allow your user all the actions.