This problem usually occurs because the computer is optimized by system optimization software such as optimizer and Rubik's cube, and the system driver is deleted, which leads to this problem.
Second, solve
Please work hard and follow our steps to solve it. It's not too complicated
Step 1: Download the deleted driver backup file and decompress it.
Driver backup in slimming function has deleted some folders in folder C: Windows System 32 Driver Store File Repository, and we have packaged this folder-
For 32-bit Windows 7, please: Windows 7/ file repository (x86). Rar "target = _ blank > Click here to download 1 13MB.
For 64-bit Windows 7, please: Windows 7/ file repository (x64). Rar "target = _ blank > Click here to download 194MB.
Please decompress after downloading. If you don't know whether your system is 32-bit or 64-bit, please right-click the computer in the start menu and view the system properties. Or click on the small report in the Rubik's Cube to see it.
Step 2: Restore the deleted file.
1. Get the administrator rights of the target folder.
First, please ask the beautification master in the Rubik's Cube to click "right-click menu customization" above, then click "Add right-click menu item" on the left, check "Administrator obtains ownership (files and folders)" on the right, and click "Apply" in the lower right corner. In this way, when you right-click on a file or folder, there will be an extra item "Administrator takes ownership" in the menu. If you log in directly as the user administrator, you can omit this step.
Then, open a browser and open the folder C:WindowsSystem32DriverStore.
Right-click the FileRepository folder, and then click "Administrator takes ownership" on the menu. At this time, a command line window will pop up and continue to perform operations. You can wait patiently for dozens of seconds until the command line window closes automatically.
2. Folder recovery operation: Then, copy or cut all the contents of the FileRepository in the file just extracted and paste it into the folder C: Windows System 32 Driver Store File Repository.
If you are prompted to overwrite files, etc. Click OK all the way (because there are many files, remember to check the remaining files below and then press this operation).
After all these folders are pasted successfully, it is finished. If you still encounter the problem of insufficient prompt permission, do not close the prompt window. You can regain administrator rights for the folder C: Windows System 32 Driver Store File Repository, and then click Retry. Or you can right-click the folder properties, click the Security tab, click the Edit button, manually add the permissions of your current Windows user name, set it to Full Control, and then click Retry the file copy operation.
Now, you can install Windows 7 SP 1. Whether installing the downloaded SP 1 service pack independently or installing Win7 SP 1 online through Windows Update, 100% is sure to succeed.
Of course, it doesn't have to be so complicated. Bian Xiao made this, a 32-bit machine.
For 32-bit Windows 7, please click here to download 1 13MB.
Please click here to download 194MB for 64-bit Windows 7.
Decompress and copy the files inside to C: Windows System 32 Driver Store File Repository. If there are duplicates, skip and install SP 1 after copying, the installation can also be successful.