What if there is not enough hard disk space to upgrade win 10 system? The solution is to use the tools that come with win7 to adjust the hard disk partition.

Right-click the desktop icon Computer and select Manage.

In the Computer Management dialog box, select Disk Management next to Storage.

You can see the total capacity of each partition here. Double-click "Computer" on the desktop to get the usage status and remaining space of each partition, and then decide to compress that partition and finally release it to the C disk system disk.

According to my situation, the D disk can be divided into 20G spaces, and the D disk can be compressed. Right-click on drive D, and you can see that my "expanded volume" and "compressed volume" are both gray, indicating that they are unavailable. Maybe the file systems of drive C and drive D are different. Drive C is NTFS and drive D is FAT32. If possible, introduce the method of transferring some partitions of disk D to disk C. First of all, it must be a disk adjacent to the system disk C, and it can only be a D disk. If you have too many files on disk D, you'd better transfer to other disks first. Then right-click D, select "Compress Volume", fill in the value to be compressed, and convert it into m, 20G is 20* 1024M=20480M. After compression, there will be an unallocated volume on the hard disk. Right-click drive C and select Expand Volume to expand the unassigned volume to drive C. ..

Now, the remaining space on system disk C is much larger than 20G. If your computer can't use "compressed volume" and "expanded volume" like me, then we will use "Partition Assistant Professional Edition 5.6" to complete this task.

What if there is not enough hard disk space to upgrade win 10 system? The solution is to use the tools that come with win7 to adjust the hard disk partition.

Right-click the desktop icon Computer and select Manage.

In the Computer Management dialog box, select Disk Management next to Storage.

You can see the total capacity of each partition here. Double-click "Computer" on the desktop to get the usage status and remaining space of each partition, and then decide to compress that partition and finally release it to the C disk system disk.

According to my situation, the D disk can be divided into 20G spaces, and the D disk can be compressed. Right-click on drive D, and you can see that my "expanded volume" and "compressed volume" are both gray, indicating that they are unavailable. Maybe the file systems of drive C and drive D are different. Drive C is NTFS and drive D is FAT32. If possible, introduce the method of transferring some partitions of disk D to disk C. First of all, it must be a disk adjacent to the system disk C, and it can only be a D disk. If you have too many files on disk D, you'd better transfer to other disks first. Then right-click D, select "Compress Volume", fill in the value to be compressed, and convert it into m, 20G is 20* 1024M=20480M. After compression, there will be an unallocated volume on the hard disk. Right-click drive C and select Expand Volume to expand the unassigned volume to drive C. ..

Now, the remaining space on system disk C is much larger than 20G. If your computer can't use "compressed volume" and "expanded volume" like me, then we will use "Partition Assistant Professional Edition 5.6" to complete this task.