[Solved] C: Drive is full after upgrade

C: Drive is full after upgrade

I just updated to Windows 7 Professional from Vista Professional.
It would only let me install it on my D: drive which has a total of 14GB and is now down to 2.53GB available.
The C: drive however, which had plenty of room before Win 7 upgrade now only has 6.7 of 134 GB free.
Can anyone please help me clear this up or at least tell me what may be taking up all that room on my C: drive?
Thank you!

Keys to the Problem C: Drive is full after upgrade

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Yes, it seems you have indeed installed Windows 7 on the Recovery Partition.
Thats why you are still seeing the option to boot into Windows Vista.
Restart the computer, and boot into Windows Vista.
Click Start, right click Computer
Click Manage
Expand Disk Management

Select the Recovery Partition
Right click it, click 'Format'
You will receive a Warning dialog, click OK to continue.

The next step is to select your file system option, in this case, go with the default which is NTFS.
The formatting process will now begin.
Once complete, the drive will be displayed as a ‘Logical Drive’ in Disk Management.

Right click the ‘Logical Drive’ in Disk Management, on the contextual menu, click the ‘Delete Volume’ option.
Click ‘Yes’ when the warning dialog appears.
The Volume you deleted will now appear as ‘Free space’, you will also notice that the disk icon no longer appears in the list of volumes.
Right click the Free space partition, and click Delete, click Yes on the Disk Management warning that appears.

The volume will now appear as Unallocated.
(good stuff).
Our next step is to merge back that unallocated free space with the system partition.
Right click the System volume and click the ‘Extend Volume’ option on the contextual menu, click ‘Yes’ when the warning
appears.

A wizard will now begin that will guide through the steps to merge back the unallocated space with your system partition.

The wizard provides a simple procedure to merge back the unallocated space with the system drive.
Once you have selected the space, click Next, at the end of the wizard, you will see the amount allocated.
Proceed with the upgrade again.
I would recommend you run disk clean up, delete any old system restore points in Vista, clear out your temporary files directory click Start type: %temp% then enter.
Delete the contents of that directory.
Also, go to the root of the drive on which Vista is installed to see if any recently added files are there that are unusually large.
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Windows Error Reporting - To Fix C: Drive is full after upgrade

1. Go to Start button.
2. Open Control Panel.
3. Go to Windows Error Reporting.
4. Click on System and Maintenance, then click Problem Reports and Solutions.
5. Next, click Change Settings located on the left side panel of the Problem Reports and Solutions window.
6. Select an option to configure how you want Windows to look for a solution to your problems. You may allow Windows to do it automatically or ask you every time to check if problem occurs.
7. Next, click the Advanced settings link.
8. Select Off to turn off Error Reporting.

Another Safe way to Fix the Problem: C: Drive is full after upgrade:

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1. Click the button to download SmartPCFixer . Install it on your system.  Open it, and it will perform a scan for your system. The junk files will be shown in the list.

2. After the scan is finished, you can see the errors and problems which need to be repaired.

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