How to Free up Disk Space in Windows 7/8/10

Some people including myself have encountered the problem that when I open the “My Computer”, the disk C shows a red bar. It means the disk is almost full and has very low space, which can cause Windows to run more and more slowly, and even can be ……

How to Boot Computer into Windows Safe Mode

Safe mode, which is a special mode in Windows, is usually used as a way to gain limited access to computer when Windows can’t start normally. One of the important steps can be booting into safe mode while troubleshooting a computer. Actually, we us……

How to Set Virtual Memory in Windows 8

All running programs on the computer can’t do without memory. If too many programs are simultaneously running, it will take up too much memory and result in insufficient memory, and then cause your computer to run slow. Occasionally, insufficient m……

How to Add User to Local Administrator Group in Windows

Generally, standard users have no rights to perform most common tasks such as installing and launching software on the computer. Only as an administrator can you have full rights to do any operation on Windows. If you are a standard user without ad……

How to Fix Windows 7 User Login Failed

Occasionally, Windows 7 users can encounter the situation where they failed to login to system. Now here we explain how to fix Windows 7 login failed in the two common cases. Case 1: For “The user name or password is incorrect” error ……

How to Hide and Unhide Folders in Windows 7/8

In Windows 7/8, if you want to protect some sensitive folders from missing and accidental deletion, it should be a good way to hide them. Then just unhide them if you need to view or open the folders again. However, it doesn’t need any third-party ……

Free Ways to Unprotect Excel Sheet without Password

So you are prompted with the warning message each time you attempt to modify an Excel cell? It means the Excel sheet is protected and you need to unprotect it by click on the Unprotect Sheet button in the Changes group under the Review tab. When ……